why is it difficult to observe individual chromosomes with a light microscope during interphase? view available hint(s)for part a why is it difficult to observe individual chromosomes with a light microscope during interphase? the spindle must move them to the metaphase plate before they become visible sister chromatids do not pair up until division starts the dna has not been replicated yet interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis they leave the nucleus and are dispersed to other parts of the cell

Answers

Answer 1

During the interphase, chromatin is in its lax state. DNA is uncoiled and the molecule looks like a single long and thin strand. Option D) Interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis.

When do chromosomes become visible under the optic microscope?

After the interphase and during the prophase, the cell suffers a few changes. The nuclear membrane breaks, organelles arrange near the cell periphery, centrosomes move to the opposite poles, and the mitotic spindle extends.

During this stage, chromosomes begin their condensation thanks to the action of hystones and other the proteins associated with them. While they are condensing, they become visible under the optic microscope.

Before the prophase, during the interphase, chromatin is uncoiled, and the DNA molecule is in its lax state.

The correct option is d) interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis.

You can learn more about chromosomes condensation at

https://brainly.com/question/12369232

https://brainly.com/question/13832581

#SPJ1

Why is it difficult to observe individual chromosomes with a light microscope during interphase?

a) the spindle must move them to the metaphase plate before they become visible

b) sister chromatids do not pair up until division starts

c) the dna has not been replicated yet

d) interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis

e) they leave the nucleus and are dispersed to other parts of the cell


Related Questions

Why is the the ability of glucose to affect transcription of the lac operon an advantage for the bacterial cell?.

Answers

Glucose is the preferred sugar for bacterial cells, Hence it is an advantage for the bacterial cell if glucose affects transcription.

The hypothesis for the Control of Gene expression in prokaryotes was given F Jacob and Monad. This hypothesis is known as the operon model. This theory was given based on a study of lac(lactose) operon in E.coli.

The operon consists of the following

(i) Operator gene

(ii) Promoter gene

(iii) Regulator gene

(iv) Structural gene

In the operon, Lactose acts as an inducer that allows RNA polymerase to perform transcription by binding with the repressor produced by the repressor gene. Glucose acts on lactose by diminishing its metabolism thereby suppressing the transcription of the lac operon. The end targets of glucose are positive regulator, complex receptor protein, and cyclic adenosine monophosphate(cAMP).Glucose eventually prevents the entry of inducer making the repressor free of inducer .

The levels of glucose increase subsequently which evidently is beneficial for the bacterial cell.

To learn more about the Lac operon model visit

https://brainly.com/question/19596166

#SPJ4

the digestive substance in the small intestine that breaks starch down into more simple glucose chains is: a. pancreatic amylase b. bile c. pancreatic protease d. lipase

Answers

The digestive substance within the small gut that breaks starch down into more easy glucose chains is a. pancreatic amylase.

Option A. pancreatic amylase.

Glucose is the number one strength supply of the frame. predominant nutritional resources of glucose include starches and sugars. Digestion of Carbohydrates. dietary carbohydrates are digested into glucose, fructose, and/or galactose, and absorbed into the blood inside the small intestine.

Starch digestion involves the breakdown through α-amylase to small linear and branched malto-oligosaccharides, which might be in turn hydrolyzed to glucose through the mucosal α-glucosidases, maltase-glucoamylase (MGAM) and sucrase-isomaltase.

Learn more about glucose  here

https://brainly.com/question/397060

#SPJ4

Why are haploid cells important in reproduction?.

Answers

The haploid cells are very important in reproduction because Haploid cells are required for sexual reproduction.

What are haploids cells?

Haploid is defined as the presence of a single set of chromosomes in the cells of an organism. Sexually reproducing organisms are mostly diploid i.e. having two sets of chromosomes getting one from each parent. In humans, the egg and sperm cells are haploid whereas body cells are diploid.

Examples of haploid gametes are Sperm and egg cells which is the reproductive cells of humans, Spores which is the reproductive cells of fungi, algae, and plants, and Pollen the reproductive cells of male plants.

Human cells are considered diploid because they transfer two sets of chromosomes, the total is 46, 23 from the female and 23 from the male. The only exceptions are reproductive i.e. egg and sperm cells are known as haploid cells because they contain 23 chromosomes.

So we can conclude that Haploid cells are required for sexual reproduction so that's why haploid cells are very important in reproduction.

Learn more about cell here: https://brainly.com/question/13920046

#SPJ1

What is the purpose of embedding the electron transport chain in the membrane of a cell?.

Answers

The purpose of embedding the electron transport chain in the cell membrane is to store excess of hydrogen ions (protons) to fuel ATP synthase.

What is electron transport chain?

The electron transport chain is said to be a series of four protein complexes that combine redox reactions to produce an electrochemical gradient that leads to the formation of ATP in a complete system called oxidative phosphorylation. Both cellular respiration and photosynthesis occur in mitochondria.

The primary goal of the electron transport chain is to accumulate an excess of hydrogen ions (protons) in the intermembrane space in order to create a gradient in their concentration in comparison to the matrix of the mitochondria. ATP synthase will be fueled by this. We can also say the electron transport chain is embedded in the inner membrane of the mitochondria during aerobic respiration. An electrochemical gradient is produced in the mitochondrial intermembrane gap as a result of the energy lost as they move from one carrier to another. This gradient is used by ATP synthase to produce stored energy (ATP).

To know more about the electron transport chain, visit:

https://brainly.com/question/13975046

#SPJ4

the bones function as levers in coordination with what other body system? question 1 options: cardiovascular muscular integumentary digestive

Answers

The bones function as lever in coordination with muscular body system.

Bones are the type of tissues that provide the body its actual shape and structural framework. They are hard and calcareous on the outside but have a soft inner spot. The bones are comprised of calcium and phosphorus minerals. There are a total of 206 bones inside an adult human.

The muscular system of the body is comprised of the muscle tissues. There are three categories of muscles: skeletal, smooth and cardiac. The smooth and cardiac muscles can maintain their own movement but skeletal muscles are attached with the bones to facilitate their movement.

To know more about muscular system, here

brainly.com/question/3162365

#SPJ4

If you change the difference in lag times of P and S waves from 00:01:50 to 00:04:00,
how does that change the distance of the earthquake to the seismic station?

Answers

The farther a seismic station is from the earthquake epicenter the greater will be the difference in time of arrival between the P and S wave.

As the P and S waves journey out from an earthquake the P waves get regularly farther ahead of the S waves. Therefore, the farther a seismic station is from the earthquake epicenter the more may be the distinction in time of arrival between the P and S wave.

The distinctive waves every travel at different speeds and therefore arrive at a seismic station at specific times. P waves tour the fastest, so they arrive first. S waves, which tour at approximately half the rate of P waves, arrive later.

P and S waves may be used to discover the epicenter of an earthquake. Since P waves are faster than S waves, the larger the appearance time distinction between the 2 waves is, the farther that location is from the epicenter.

Learn more about earthquake here:- https://brainly.com/question/248561

#SPJ1

If a drug that specifically prevented the interaction of cytochrome c with other proteins was added to respiring mitochondria in a test tube, what effects would be observed?.

Answers

The cell won’t be able to completely oxidise glucose if an additive molecule that hinders the electron transport chain is applied. As a result, less oxygen is consumed.

When complex I is inhibited by antimycin A, electron transport from complexes or flavoproteins containing FADH2 to cytochromes is prevented.In this instance, the initial Complex Ill constituents are completely reduced and the subsequent constituents are oxidised. The final complex of eukaryotic oxidative phosphorylation in mitochondria is called cytochrome c oxidase. This process combines the reduction of electron carriers during metabolism with the reduction of molecular oxygen to water as well as the transfer of protons from the inner matrix of the mitochondria to the intermembrane gap.Adenosine triphosphate, an energy-carrying molecule, is present in the cells of all living things (ATP). ATP stores the chemical energy produced by the disintegration of food molecules before releasing it to drive other cellular processes.Cells often require chemical energy for three types of tasks: driving metabolic activities that wouldn’t occur naturally; transferring required materials across membranes; and doing mechanical work, like flexing muscles.

To know more about Cytochrome visit:

https://brainly.com/question/29369732

#SPJ4

Accuracy in the translation of mrna into the primary structure of a polypeptide depends on specificity in the _____.

Answers

Accuracy in the translation of mRNA into the primary structure of a polypeptide depends on specificity in the binding of the anticodon to the codon and the attachment of amino acids to tRNAs. Here option B is the correct answer.

The anti-bonding codons to the codon and the amino acid's attachment to tRNA influence how precisely translation is carried out.

In live cells, protein synthesis occurs through the processes of transcription and translation. DNA is transcribed into mRNA during transcription, which happens in the nucleus. After decoding the genetic instructions in the mRNA, the mRNA was then carried into the cytoplasm's ribosomes, where it was translated and made proteins.

The nucleotide sequence of the mRNA is now translated into a chain of amino acids by the cell, which just transcribed this mRNA strand from its DNA.

Complete question:

Accuracy in the translation of mRNA into the primary structure of a polypeptide depends on specificity in the _____.

a. binding of ribosomes to mRNA

b. binding of the anticodon to the codon and the attachment of amino acids to tRNAs

c. binding of the anticodon to small subunit of the ribosome

d. attachment of amino acids to rRNAs

To learn more about polypeptides

https://brainly.com/question/28270191

#SPJ4

What three tests must you pass in order to be eligible for your probationary license?.

Answers

Knowledge, vision, and road test are the three tests must you pass in order to be eligible for your probationary license.

What is license?A license is a formal permission or authorization to do, use, or possess something. Licenses are granted by one party to another party as part of the agreement between the parties.In the case of a government-issued license, the license is obtained upon application.License means permission to do something, especially a formal authorization from a government or other agency.The term often refers to  proof of this authorization. Cards or Certificates. License agreements generate income called royalties. It does this by allowing another company to use material that is copyrighted or patented  by one company. Examples of things that can be licensed include songs, sports team logos, intellectual property, software, and technology.

To learn more about license from the given link :

https://brainly.com/question/15829119

#SPJ4

an mrna molecule with the sequence 5'-ccg-acg-3'is being read by a ribosome. during translation which of the following trna anticodons will be the first to productively bind with this mrna?

Answers

The anticodon loop of the initial trna, which will complete this mrna, is 3' GGC 5.A transfer RNA triplet of nucleotide bases and a complementary codon in messenger RNA connect to each other to identify the amino acid supplied during protein synthesis at a ribosome.

An amino acid is coded for by a codon, which is a triplet of three nucleotides that can be found on mRNA. An anticodon, which is a three-nucleotide sequence on tRNA, joins with the same sequence on mRNA to form a bondTo determine the whole anti-codon sequence necessary to match a certain strand of mRNA, or to match the complementary nucleotides in the mRNA sequence, each tRNA has a trio of bases known as an anti-codon.Proline-stop Threonine’s codon will be produced by the mRNA sequence 5-CCG-ACG-3’.The genetic code Is understood to be a system of base sequences that designate the amino acids needed for protein production during translation.The code Is made up of codons, each of which specifies an individual amino acid and has a triplet of bases.There are 64 codon sequences, of which 61 define amino acids and 3 specify the point at which translation should stop.

To know more about Anticodon visit:

https://brainly.com/question/15684723

#SPJ4

derived from bone marrow: a.phagocytic b.polymorphonuclear c.thrombocytopenic d.granulocytopenic e.myeloid

Answers

Myeloid (option e) is the one that is derived from bone marrow.

Any tissue from or derived from bone marrow is referred to as myelogenous tissue. In these senses, the terms are typically used synonymously, as is the case with chronic myeloid/myelogenous leukaemia. Myeloid tissue is tissue of bone marrow, of bone marrow cell lineage, or resembling bone marrow.

Myeloid or myelogenous cells in hematopoiesis are blood cells that develop from the common myeloid progenitor, which is CMP or CFU-GEMM, or, in a more restricted definition that is also frequently used, particularly from the lineage of the myeloblast (the myelocytes, monocytes, and their daughter types). Thus, myeloid cells in the strictest sense of the word can be distinguished from lymphoid cells, or lymphocytes, which are derived from the same lymphoid progenitor cells that give rise to B cells and T cells, even though all blood cells, including lymphocytes, are typically born in the bone marrow in adults. Before they migrate to lymphatic organs like the spleen and thymus for antigen challenge training, those cells' differentiation is not finished. As a result, the term myeloid for leukocytes refers to the innate immune system, while lymphoid refers to the adaptive immune system. The term "erythroid" is frequently used to distinguish "erythrocyte-related" from both lymphoid and the sense of myeloid that refers to nonlymphocytic white blood cells.

Learn more about 'bone marrow' here:

https://brainly.com/question/6197163

#SPJ4

which hormone increases sodium excretion?

Answers

Answer: The correct answer to that should be Aldosterone.

Explanation:

The hormone that increases sodium excretion is Aldosterone. Principal cells respond to aldosterone by absorbing sodium and excreting potassium into the lumen. The correct option is B

What are hormones?

Hormones affect a variety of bodily functions, including growth and development, metabolism—the process through which your body converts food into energy—sexual function, reproduction, and mood.

A drop in blood pressure causes aldosterone to secrete more. Aldosterone secretion would decrease with higher blood pressure, and more sodium would pass through the urine.

The chemical messengers of the body, hormones communicate with tissues and the bloodstream. Aldosterone is the hormone that raises sodium excretion. In response to aldosterone, principal cells take in sodium and release potassium into the lumen.

Therefore, the correct option is B, Aldosterone.

To learn more about hormones, refer to the link:

https://brainly.com/question/15520849

#SPJ12

The question is incomplete. Your most probably complete question is given below:

Estrogen.

Aldosterone.

Serotonin.

Adrenaline.

using the plate for the cross-section leveling of the honolulu-kailua highway 1. draw, not-to-scale, the cross section at station 3 00 2. if the -sight at station 2 00 was 8.4 instead of 7.4 ft, what would the elevation at 30 ft to the left of the center line be at this station?

Answers

When (-) Sight at station 2+00 is 7.4 When (-) Sight at station 2+00 is 8.4 instead of 7.4.

When (-) Sight at station 2+00 is 7.4,

The cross-section at the station.

Elevation at 2+00 = Height of instrument - Foresight

Elevation at 2+00 = 98.23 - 7.4 = 90.83

When (-) Sight at station 2+00 is 8.4 instead of 7.4,

Elevation at 2+00 = Height of instrument - Foresight

Elevation at 2+00 = 98.23 - 8.4 = 89.83.

LEGENDS Elevation Elevation Elevation Elevation Elevation Elevation Elevation (-) Sight (-) Sight (-) Sight (-) Sight (-) Sig

Elevation at a point = Elevation at center point + (Sight at center point - Sight at the required point)

When (-) sight at station 2+00 is 7.4,

Elevation at a point 30 ft to the left of the center line = Elevation at center point + (Sight at center point - Sight at point 30 ft to left of center line).

Elevation at a point 30 ft to left of center line = 90.83 + (7.4 - 8.2) = 90.03

When (-) sight at station 2+00 is 8.4 instead of 7.4, Elevation at a point 30 ft to the left of the center line = Elevation at center point + (Sight at center point - Sight at point 30 ft to the left of center line)

Elevation at a point 30 ft to left of center line = 89.83 + (8.4 - 8.2) = 90.03

Learn more about the cross-section here:-https://brainly.com/question/121527

#SPJ4

during rna processing, what happens to a mrna that makes it easier for ribosomes to attach to the 5' end

Answers

Exons of the mRNA are removed during RNA processing, which makes it easier for the ribosome to connect to the 5' end.

In some genes, non-coding DNA sequences are found between the DNA segments that code for proteins. Pre-introns mRNA's are cut out during RNA splicing to provide the complete set of instructions for the protein.

The removal of specific sequences known as intervening sequences, or introns, or they're "splicing out" is one of the processes in this processing, known as RNA splicing. Thus, the remaining sequences, known as exons, are joined through splicing to form the final mRNA.

The complete gene, including exons and introns, is transcribed into a pre-mRNA during transcription. Introns are cut out and exons are combined to create a continuous coding region during the RNA splicing process.

To learn more about RNA

https://brainly.com/question/20914096

#SPJ4

Example of two plants mentioning different environmental factors for each.

Answers

Temperature, food, pollutants, population density, sound, light, and parasites are a few examples of environmental influences.

What do you mean by environmental factors?

In relation to genetics, environmental influences include things like insecticides or toxic pollution we are exposed to where we reside or work, unhealthy lifestyle choices like smoking or eating poorly, and stressful events (such as racism).

How does environmental factors affect health?

Toxins in the environment can aggravate ailments like cancer, heart disease, and respiratory problems. People with lower incomes are much more likely to live in dangerous areas and also have access to tainted water. Additionally, children and pregnant women are more at risk for pollution-related health problems.

To know more about Environmental factors visit:

https://brainly.com/question/2655226

#SPJ1

In animals, the inability to make the pigment melanin results in albinism, a recessive condition. Two unaffected parents, who have decided to have three children, have a first child that has albinism (genotype aa). What is the probability that the second or third children will also have albinism?.

Answers

In animals, the inability to make the pigment melanin results in albinism, a recessive condition.1/16

Melanin is a substance in your body that produces hair, eye and pores and skin pigmentation. The greater melanin you produce, the darker your eyes, hair and pores and skin will be. the amount of melanin to your body relies upon on some different factors, which includes genetics and what sort of sun publicity your ancestral populace had.

Melanin is a type of pigment that gives coloration to the hair, skin, and eyes in people and animals. similarly to supplying pigmentation for the cells, melanin also absorbs harmful UV rays and protects in opposition to cellular harm from UV mild publicity.

Melanin is a sort of pigment that offers shade to the hair, pores and skin, and eyes in humans and animals. similarly to providing pigmentation for the cells, melanin additionally absorbs dangerous UV rays and protects towards cellular damage from UV light exposure.

Learn more about pigment melanin  here:

https://brainly.com/question/28996990

#SPJ4

The human body has specialized organs called glands which collect and process substances from the blood. The concentrated substances are then secreted as hormones to regulate body processes. These specialized organs are part of which body system?.

Answers

The specialized organs listed in the aforementioned extract are part of the circulatory system.

Where are glands in your body?

Its hormone system is composed of several glands. Your hypothalamic, adrenal, and pineal glands are located in your brain. The pituitary or parathyroid glands are located in your neck. The thyroid is positioned above your lungs, the pancreas is now under your stomach, and the adrenal glands remain on the top of your kidneys.

What gland means?

an organ that produces one or more things, such as saliva, milk, perspiration, tears, hormones, or digestive juices. The compounds are released into the bloodstream by endocrine glands. The compounds are released by exocrine glands into a duct or aperture that leads either within or outside the body.

To know more about glands visit:

brainly.com/question/4133041

#SPJ4

which is not a characteristic of proteins? a. can self-replicate b. can act as a hormone c. acts in cell membrane trafficking d. can bind foreign materials

Answers

The characteristics which do not belong to proteins is option A: can self-replicate.

DNA is the only molecule capable of self-replication. It is a nucleotide and not a protein. Characteristics other than option A are all those of proteins. Proteins act as a hormone, for eg Insulin. They can act in cell membranes trafficking. For example, SNARE proteins. They can also bind foreign materials, as antibodies.

The body uses the large, complex molecules known as proteins for a number of essential processes. They are crucial for the structure, operation, and control of the body's tissues and organs and carry out the majority of their job inside cells. Proteins are basically made up of amino acids, linked together to form long chains.

To know more about proteins, refer to the following link:

https://brainly.com/question/884041

#SPJ4

What process immediately
and typically follows
telophase and completes the
cell cycle?
A. cytokinesis
B. omegaphase
C. resting phase

Answers

When telophase is complete, cytokinesis (the division of cytoplasm) occurs at the metaphase checkpoint. The two daughter cells will then be moved into the G-0 or G1 phases.

What happens after telophase right away?

Cytokinesis and Telophase

Telophase is followed by cytokinesis, or the division of the cytoplasm into two daughter cells. This procedure results in the production of daughter cells, which are genetically identical to the parent cells.

The telophase is what stage?

During telophase, the chromosomes begin to decondense, the spindle disintegrates, and the nuclear membranes and nucleoli reorganize. Each of the two daughter cells produced by the mother cell's cytoplasm division has the same number and kind of chromosomes.

To know more about Cytokinesis, visit-

https://brainly.com/question/221186

#SPJ13

Which are examples of a chemical change occurring? (Select all that apply.)
frying an egg
cutting butter
toasting bread
melting chocolate

Answers

answer: frying an egg and roasting bread are both chemical changes
explanation:
1) Frying an egg is a chemical reaction. It is an example of an endothermic reaction or one that takes in heat to make the reaction occur.
2)Toasting bread is a chemical reaction because the heat applied to the bread causes a process called the Maillard reaction. This is a chemical reaction that causes the browning of food when cooking.

Answer:

Frying an egg

Cutting butter

Explanation:

Frying an egg is changing the liquids and forming them into a harder substance. Cutting butter is breaking apart the particles that keep it together. Those are examples of chemical change.

orientation tuning curves show the response pattern of neurons to stimuli (e.g. bars of light). what recording methodology was used to create these curves?

Answers

Single cell recordings methodology used for orientation tuning curves show the response pattern of neurons to stimuli.

Single-cell recording is a method for tracking changes in current or voltage within a single neuron. It is still conceivable to register a neuron in a living animal, despite the fact that this is a traditional in vitro procedure. Since many years ago, single-cell electrophysiology in vivo has been used. Kuffler initially applied it to the sensory systems (1953). This makes it possible to ascertain the types of stimuli that a given cell reacts to. You might try your hand at an experiment using this graphic, evaluating the response of one eye cell, a ganglion cell.

Hence, Single cell recordings is primary option for tuning curves

To know more about Neurons.

https://brainly.com/question/29462317

#SPJ1

What part of the brain is most important for yenay to recognize and name the new food?.

Answers

Answer: anterior temporal lobes

Explanation: The anterior temporal lobes are on part of the human brain that helps recall names of things

Are the neurons that carry information from the eyes and ears to the cns motor or sensory neurons?.

Answers

Sensory neurons carry information from the sense organs (such as the eyes and ears) to the brain.

Sensory neurons transmit information to the brain from the sense organs (such as the eyes and ears). Motor neurons control voluntary muscle activity like speaking and transport messages from nerve cells in the brain to the muscles. Sensory neurons are nerve cells that are activated by sensory input from the environment. For example, if you touch a hot surface with your fingertips, the sensory neurons will fire and send signals to the rest of the nervous system about the information they have received.

Sensory neurons (also known as afferent neurons) are nerve cells that transport nerve impulses from sensory receptors to the central nervous system and brain.

To learn more about Sensory neurons, here

https://brainly.com/question/1967609

#SPJ4

which of the following is incorrect about the nitrogen cycle? a. nitrate and nitrite reductases in denitrifying bacteria convert ammonia to nitrogen gas. b. diazotrophs provide the nitrogenase enzyme for nitrogen fixation. c. glutamate synthase assimilates fixed ammonia into glutamate. d. nitrifying bacteria produces nitrites and nitrates that can be absorbed by plants.

Answers

The incorrect statement about the nitrogen cycle is option A: nitrate and nitrite reductases in denitrifying bacteria convert ammonia to nitrogen gas.

The biological nitrogen fixation (BNF) is the process by which atmospheric nitrogen is changed into ammonia, and the nitrogen-fixing bacteria are known as diazotrophs. Fixation, ammonification, nitrification, and denitrification are significant nitrogen cycle processes. Ammonia is converted to nitrites and then to nitrates which are absorbed by plants with the help of their roots. Therefore, option A is incorrect.

Through bacteria that fix nitrogen from the atmosphere, nitrogen enters the living world. Soil bacteria convert this nitrogen and nitrogenous animal waste back into gaseous nitrogen, supplying the organic nitrogen required by terrestrial food webs.

To know more about nitrogen cycle, refer to the following link:

https://brainly.com/question/11662775

#SPJ4

Select the nuclear membrane closeup. How is the nuclear membrane similar to the cell membrane?.

Answers

Nuclear membrane similar to the cell membrane as they both are made up of lipid bilayer.

These both layers are made up of lipid bilayer , they are important for protection and transport .

Main function of nuclear membrane is to protect the cell and act as a barrier to to sperate the content of nucleus to cytoplasm . Nuclear membranes are phospholipid bilayers, which are permeable only to small nonpolar molecules. While cell membrane is the lipid bilayer surrounding the entire cell.

To learn more about Nuclear membrane , here

brainly.com/question/26551212

#SPJ4

when a speckled nuclear antibody (ana) pattern is observed, what follow-up test for antibodies related to systemic lupus erythematosus (sle) is not beneficial?

Answers

The follow-up test related to systemic lupus erythematosus (SLE) which is not beneficial when a speckled antinuclear antibody (ANA) pattern is observed is: Testing for antibodies to U1RNP+ and dcSSc.

SLE is an autoimmune disease where the immune cells of the immune system attacks a person's self cells or tissues. This disease affects the joints, skin, kidneys, blood cells, brain, heart and lungs. The symptoms may be varying from person to person but the general symptoms are: fatigue, joint pain, rash and fever.

ANA is the antinuclear antibody. These are prevalent in the body when there is an indication of some autoimmune disease. These antibodies guide the immune cells to attack the self-cells.

To know more about SLE, here

brainly.com/question/28069003

#SPJ4

suppose a mutant strain of escherichia coli k12 contains a mutation in the trpe gene and is no longer able to make tryptophan. what is this mutant called?

Answers

A mutant strain of Escherichia coli k12 contains a mutation in the trpe gene and is no longer able to make tryptophan such mutant is called as prototroph.

What is mutation?

A mutation is a change in the nucleic acid sequence of a virus, additional chromosomal DNA, or an organism's genome. The viral genome may contain DNA or RNA.

DNA can change in three different ways: through base substitutions, deletions, and insertions.

One of the primary mechanisms driving evolution is mutation, which increases population variability and promotes evolutionary changes.

Therefore, a mutant strain of Escherichia coli k12 contains a mutation in the trpe gene and is no longer able to make tryptophan such mutant is called as prototroph.

To learn more about mutation

Here: https://brainly.com/question/17031191

#SPJ4

if you were running an experiment and interrupted the interaction between thin and thick filaments, what would be the most likely result of sarcomere contraction?

Answers

The sarcomere would not be able to contract therefore the H zone and I band would remain the same in size.

Sarcomere when in resting phase is stretches in ideal resting length, thick and thin filaments may not overlap unto the greatest degree, as a result fewer cross-bridges are form.

Thick and thin filaments overlap to form the different parts of the sarcomere  , when the Thin filaments are pulled by the thick filaments toward the center of the sarcomere until it approaches the Z discs . The overlapping zone increases as the thin filaments moves inwards.

To learn more about Sarcomere , here

brainly.com/question/14005497

#SPJ4

how many different genotypes are shown in the 16 squares of the grid? genotypes: what is the genotypic ratio underlying the 9:3:3:1 phenotypic ratio?

Answers

The genotypic ratio underlying the 9:3:3:1 phenotypic ratio is 1:2:1:2:4:2:1:2:1.

The genetic make-up of an organism is referred to as its genotype, and it reflects each of the alleles, or gene variants, that the organism carries.

A mating experiment between two organisms that are equally hybrid for two traits is referred to as a dihybrid cross. When an organism is heterozygous, it means that there are two distinct alleles present at a specific genetic location or site. When Gregor Mendel saw pea plants that were either yellow or green, spherical or wrinkled, he came up with the concept of a dihybrid cross.

In a dihybrid cross, the genotypic ratio is 1:2:2:4:1:2:1:2:1 for the F2 generation. A 9:3:3:1 phenotypic ratio would then result.

To know more about genotypic ratio visit the link:

https://brainly.com/question/14553311?referrer=searchResults

#SPJ4

Which was Venter’s contribution to science? discovered the existence of single-celled organisms invented the light microscope discovered the structure of DNA invented a synthetic cell

Answers

The Venter’s contribution to science is invented a synthetic cell. Option D.

They destroyed the DNA in those cells and replaced it with computer-designed, lab-synthesized DNA. It was the first organism with a fully synthetic genome in the history of life on Earth. Scientists at the University of Cambridge have created the first organism with fully synthetic DNA. This is E. coli, a radically redesigned soil and stomach bacterium.

Two of Ebright's contributions to the scientific community were building a device that showed that the spots on the wings of monarch butterflies produced the hormones necessary for butterfly growth. His other important contribution was the study of how cells read DNA. First discovered by Robert Hooke in 1665, this cell has a rich and interesting history that ultimately gave way to many of today's scientific advances.

Learn more about The Venter’s contribution here:-https://brainly.com/question/13371331

#SPJ1

Other Questions
HURRY!! What is the distance between points G and H?Points G (-5,-8) and H (3,7) are plotted on a coordinate grid. ___ units if u have 100 ml of water in a foam cup or 100 ml of water in a can which variable gets manipulated "The Etruscans preferred which the following materials for sculpture? a. Marble b. Gold c. Terracotta d. Limestone. " osts that are incurred for the joint benefit of more than one department and cannot be readily traced to only one department are: Poe is a master at creating an eerie, suspenseful mood in his stories. Dig back into the text of this story and write down two lines that help establish this mood. What are the main characteristics of realism?. Groundwater come from rain or now that oak into the earth. Baed on thi text, people collect groundwater from if the theoretical minimum number of parts for this geared water pump is three and the total assembly time 116 seconds, what is its assembly efficiency? 2.5.2 Test (CST): Computer-Scored Unit TestQuestion 3 of 25Which characteristic gives the most information about what kind of elementan atom is?OA. The number of electronsB. The number of neutronsC. The atomic numberOD. The atomic massk In the figure, the light, taut, unstretchable cord B joins block 1 and the larger-mass block 2 . Cord A exerts a force on block 1 to make it accelerate forward.(1)(a) How does the magnitude of the force exerted by cord A on block 1 compare with the magnitude of the force exerted by cord B on block 2 ? Is it larger, smaller, or equal? larger:smallerequal(b) How does the acceleration of block 1 compare with the acceleration (if any) of block 2 ?largersmallerequal(c) Does cord B exert a force on block 1 ? If so, is it forward or bsckward? Is it larger, smaller, or equal in magnitude to the force exerted by cord B on biock 2?Yes; backward and equalYes; backward and less thanYes; forward and equalYes; forward and less thanYes; forward and greater thanYes; backward and greater than,No jenny (a teenage girl) and franklin (a teenage boy) are taking a standardized test of verbal skills. based on what we've learned from research, it is likely that: A mixture of nitrogen, oxygen, fluorine, and neon are in a container which has a tiny, tiny pinhole leak. Which element leaks the slowest from the container?. true or false: the government can raise its tax revenue by decreasing the per-unit tax on cigarettes. Typically, astronomers express the right ascension of a star on the sky in what units?. In this chapter, you read a Diversity & Dominance feature, "Persecution and Protection of Jews, 1272-1349." How do descriptions of Jews differ from descriptions of Christians? What punishmentsare specifically described for each group? What is 348,962 rounded to the nearest ten thousand? Two electrons are separated by a distance of 5 x 10^-5m. The charge of each electron is -1.602 x 10^-19C. Assume the Coulombs constant is 8.99 x 10^9N . m^2/C^2!!Correct answer will get 20 points!! Which answer best summarizes the state's responsibilities to the national government under the Articles of Confederation? States had to pay taxes set by Congress. States sent judges to the federal courts. States had the option to provide or refuse Congress with troops to defend the nation if needed. States could make foreign treaties and declare war if needed. Tell which Amendment has the biggest impact on your life today. Explain your reasoning. imagine a neighborhood in a suburb that is known for its strong school system. houses in the area are very expensive, and substantially above the ability for someone making the average annual salary for the surrounding communities. ninety-five percent of homes in the neighborhood are currently owned by white individuals. this is an example of