Answer: b; Highway
Explanation:
a spontaneous point mutation may be caused during dna replication when the enzyme puts the wrong base in a newly-synthesized strand.
A spontaneous point mutation may be caused during dna replication when the enzyme DNA Polymerase puts the wrong base in a newly-synthesized strand.
Point mutations are changes in the genetic sequences of DNA where only one nucleotide base has been mutated. This can be of several types like addition, deletion, insertion, etc. The example of disease caused by point mutation is sickle cell anemia.
DNA polymerase is the enzyme that forms anew strand of DNA from an existing DNA template strand. Hence it is also called DNA dependent DNA polymerase. The enzyme has different types in prokaryotes as well as eukaryotes.
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For the purposes of this question, assume that a g1 somatic cell nucleus in a female myrmecia pilosula contains 2 picograms of dna. How much dna would be expected in a metaphase i cell of a female?.
Using the theories of the cells, we got that 4 picograms of DNA would be expected in a metaphase in cell of a female if we assume that a g1 somatic cell nucleus in a female myrmecia pilosula contains 2 picograms of DNA.
Mitosis and meiosis are both types of the cell division. Mitosis is the process by which the most cells in the body divide, involves a single round of cell division, and produces the two identical, diploid daughter cells. Meiosis is the process by which the gametes are produced.
DNA synthesis is the primarily common to both. If already formed, the cardiac tissues and nervous system cells will never replicate their daughter/sister cells either through the meiosis or the mitosis.
Hence, if we assume that a g1 somatic cell nucleus in a female myrmecia pilosula contains 2 picograms of DNA, then the amount of would be expected in a metaphase i cell of a female is 4 picograms.
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if a strain of neurospora is unable to grow on minimal medium but can grow when substance a is added to minimal medium, then
Neurospora is unable to grow on minimal medium because the strain lacks the enzyme or enzymes needed to synthesize substance A.
Wild type neurospora can also grow in minimal medium . The minimal medium consists of carbon sources and inorganic salts. Inability of neurospora to grow is due to some enzymes in the pathway that are non functional which alter their growth .
Neurospora is particularly useful in genetic studies because all the alleles are expressed in Neurospora as it is haploid. Whole genome of neurospora have seven chromosomes that have been sequenced.
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Which component of eukaryotic cells is critical for the correct sorting and transport of proteins?.
In eukaryotic cells, the endomembrane system is a collection of organelles and membranes that collaborate to transport, package, and alter lipids and proteins.
Protein classification is carried out by what organelle?Proteins from the ER are further processed and sorted in the Golgi apparatus, or Golgi complex, where they are then transported to their final locations—lysosomes, the plasma membrane or secretion—for use in other processes.
Which organelle in eukaryotic cells serves as the main location for protein sorting?a description of protein sorting. While translation is taking place, proteins in mammalian cells are first sorted to the ER. Proteins produced on free ribosomes either stay in the cytosol or are moved to the nucleus, mitochondria, or other organelles.
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Str analysis is a dna profiling technique that makes use of the fact that different people have.
Str analysis is a dna profiling technique that makes use of the fact that different people have various numbers of short DNA sequences repeated at certain locations across the genome.
There are repeated nucleotide sequences in non-coding DNA regions known as short tandem repeats (STRs). At several genetic loci or regions, an individual's DNA contains STRs. The size of the STRs can be used to estimate the number of times a nucleotide sequence repeats in each STR.
STRs in DNA profiling: The functions they have is since STRs vary among tissues in an individual, they can be used to pinpoint the organ where the DNA originated.
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damage to which two thalamic nuclei would not affect output to the primary sensory or motor cortices but would affect output to the association cortices?
Damage to Pulvinar and medial dorsal would not affect output to the primary sensory or motor cortices but would affect output to the association cortices.
What are motor cortices?
The precentral gyrus and anterior paracentral lobule, which are on the medial surface of the brain, are where the major motor cortex, or M1, is situated.
The primary function of the motor cortex is to transmit signals that regulate how the body moves. The central sulcus and a piece of the frontal lobe are both anterior to it. This area is made up of the primary motor cortex, premotor cortex, and supplementary motor area.
Therefore, damage to Pulvinar and medial dorsal would not affect output to the primary sensory or motor cortices but would affect output to the association cortices.
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what enzyme helps in the relief of the torsional stress created due to unwinding of dna during replication of dna? what enzyme helps in the relief of the torsional stress created due to unwinding of dna during replication of dna? helicase primase topoisomerase isomerase
Topoisomerase enzyme helps in the relief of the torsional stress.
Enzymes are proteins that act as biological catalysts with the aid of accelerating chemical reactions. The molecules upon which enzymes may also act are known as substrates, and the enzyme converts the substrates into distinct molecules known as products.
Enzymes are crucial for digestion, liver function and much more. An excessive amount of or too little of a sure enzyme can reason fitness issues. Enzymes in our blood can also assist healthcare carriers check for injuries and sicknesses.
Characteristics of enzymes:
* Enzymes are complicated macromolecules with high molecular weight.
* They catalyze biochemical reactions in a cell.
* Enzymes have an effect on the rate of biochemical response and not the direction.
* Enzymes are unique in movement.
* Enzymatic activity decreases with growth in temperature.
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a is a microblogging tool in which posts on a similar topic are indicated by a keyword prefixed by a certain special character on microblogging websites.
Hashtag a is a microblogging tool in which posts on a similar topic are indicated by a keyword prefixed by a certain special character on microblogging websites.
Microblogging. is a shape of blogging that allows customers to write down short messages and publish them; an unfastened microblogging carrier that allows its users to ship messages and study different customers' messages and updates, called.
Hashtags are a manner to attach social media content material to a particular topic, event, subject matter, or communication. they are not just for anymore, either. Hashtags are effective on different social media platforms too.
Microblogging is a brief weblog published designed for brief and usually direct target audience interactions. these concise blogs are shared using social media platforms and might include one-of-a-kind content codecs including audio, textual content, pix, or video.
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when members of the normal microbiota of the human body become pathogenic and produce disease under certain circumstances, they are referred to as pathogens.
When members of the normal microbiota of the human body become pathogenic and produce disease under certain circumstances, they are referred to as pathogens. Opportunistic.
The everyday microbiota denotes the population of microorganisms that inhabit the skin and mucous membranes of healthful everyday persons. The normal microbiota provides the first line of protection in opposition to microbial pathogens, assists in digestion, and contributes to the maturation of the immune device.
The ordinary intestine microbiota imparts particular characteristics in host nutrient metabolism, xenobiotic and drug metabolism, preservation of structural integrity of the intestinal mucosal barrier, immunomodulation, and protection against pathogens. several factors play a function in shaping the ordinary intestine microbiota.
A primary function of the microbiota is to protect the gut against colonization by using exogenous pathogens and doubtlessly dangerous indigenous microorganisms thru numerous mechanisms, which consist of direct opposition for restricted nutrients and the modulation of host immune responses.
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Compare and contrast: Create a double bubble map of Platyhelminthes and Aschelminthes
The foremost difference among Platyhelminthes and Aschelminthes is that Platyhelminthes is a phylum containing acoelomates while Aschelminthes is a phylum containing pseudocoelomates.
Platyhelminths lack a non-residing cuticle at the same time as Aschelminths have a non-residing cuticle as a frame covering.
Platyhelminthes and Aschelminthes are phyla of proper animals that belong to the department Eumatozoa. Both phyla are extraordinarily enthusiastic as parasites.
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The two brain structures concerned directly with maintenance of homeostasis include certain nuclei in the brainstem and the _____.
Answer:
Hypothalamus
Explanation:
this is the answer
During the colonial period, a blending of indigenous beliefs and catholicism occurred in mexico in a process called?.
A new Catholic culture in Mexico was produced by religious synthesis. Mexico, just after Brazil, is the world's second-largest Catholic country in 2020.
It is referred to as a? when a significant urban area—like Mexico City—dominates the nation's affairs.What two factors are responsible for Mexico's deforestation? commercial logging and land clearing for agriculture. A primate city is what is used to describe a huge urban region that controls the political, cultural, and economic affairs of a nation, such as Mexico City.
What two factors are responsible for Mexico's deforestation?Poverty, bad government policies, certain loggers' avarice, tree poaching, and inadequate technical oversight have all contributed to Mexico's common misfortune of deforestation.
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A student reads that deer mice that migrated to the hills of nebraska originally had dark colored coats. Over many years, due to a mutation, the coat color of the mice changed to a lighter color to blend in easily with the sand. Which argument summarizes the mutation in deer mice?.
The argument which summarizes the mutation in deer mice is that it is a beneficial mutation as it helped the mice survive in their new surroundings
A mutation is a modification to the DNA sequence of an organism. Mutations can result through viral infection, errors in DNA replication during cell division, and exposure to mutagens. Germline mutations, which occur in eggs and sperm as opposed to somatic mutations, which occur in body cells, can be passed on to progeny.
Even while our cells are constantly changing, very few of these changes have a detrimental impact on our health. This is entirely different from what we generally see in science fiction movies.
In reality, a mutation is never so helpful that it transforms a person into a superhero or does anything unusual like give them wings.
The conclusion that best describes the deer mouse mutation is that it was advantageous since it allowed the mice to live in their new environment.
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What is Papiloma humano?
Hello..!
¿What is Papiloma humano?
It is a sexually transmitted disease, in some cases there are people infected by the virus but it disappears on its own, in others they are low risk and can make or cause warts in different parts of the body.
They can get worse and turn into cancer.
We can mention:
Cervical cancerSome types of mouth and throat cancerIf 35s was found in progeny phages rather than 32p, hershey and chase would have concluded that.
It would have been Hershey and Chase's conclusion that phage protein enters the host cell.
With radioactive 32P, what portion of the phage did Hershey and Chase label?Since amino acids are not found in DNA but phosphorus is, radioactive phosphorus-32 was employed to identify the DNA in the T2 phage. Because sulfur is present in protein but not DNA, radioactive sulfur-35 was employed to identify the T2 phage's protein portions.
Hershey and Chase used 32P and 35S for what reasons?Since phosphorus does not exist in protein but does exist in deoxyribonucleic acid (DNA), it was employed in the Hershey-Chase experiment. The amino acids cysteine and methionine, in contrast, contain sulfur (S). Because DNA cannot be labelled, 35S was only employed to label proteins.
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Before being harvested and sold, an individual cranberry must bounce at least how many inches high to make sure they aren't too ripe?.
Before being harvested and sold, an individual cranberry must bounce at least 12 inches high to make sure they aren't too ripe.
What is harvesting?
When all the minerals have formed and the edible sections have achieved the proper level of maturity, the plant is harvested, which is the process of gathering the useful part or parts of the plant. Typically, the grain is harvested 10 to 15 days after it reaches physiological maturity.
Therefore, Before being harvested and sold, an individual cranberry must bounce at least 12 inches high to make sure they aren't too ripe.
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It is in the medulla oblongata that corticospinal tracts ______, meaning that the motor fibers originating from the right cerebral cortex descend through the left side of the spinal cord, and vice versa.
From the neck to the feet, the somatic motor system's major motor activity is controlled by the corticospinal tract. The main spinal route that is engaged in voluntary movements is this one.
The soma of pyramidal neurons are found in cortical layer V, where the tract starts in the primary motor cortex.The premotor, primary motor, and primary sensory cortexes give rise to pyramid-shaped cells that make up the corticospinal tract, which is engaged in skilled voluntary activity.Pyramidal cells in layer V of the cerebral cortex are the source of the nerve fibers of the corticospinal tract. About 30% of fibers come from the primary motor cortex, along with similar amounts from the supplementary motor region and the premotor cortex. The remaining 40% comes from the somatosensory cortex, parietal lobe, and cingulate gyrus.
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Which technology has been commonly utilized by scientists to manipulate heritable information by producing large amounts of identical recombinant dna molecules?.
According to the research, the correct answer is genetic cloning. This technology is used by scientists to manipulate heritable information by producing large amounts of identical recombinant DNA molecules.
What is genetic cloning?It is the technological process by which a cell population with identical phenotype is obtained, producing genetically exact copies of the original DNA molecules.
In this sense, the genes are responsible for the characteristics of an individual being transmitted to the offspring, being the DNA sequence of the organism necessary to manipulate and clone the cells.
Therefore, we can conclude that genetic cloning is the technology through which exact copies of cells are obtained, whose heritable information is stored in dna molecules.
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for a child to be born with pku, both parents must carry the gene for the trait. therefore, susceptibility to pku is best described as
PKU, also known as phenylketonuria, is a very rare genetic condition that results in the body's accumulation of the amino acid phenylalanine.
How is PKU managed and what causes it?Because of a genetic disorder called phenylketonuria, your body's phenylalanine levels rise. Phenylketonuria can impair a person's ability to develop their cognitive abilities if left untreated. Symptoms can be lessened by drug treatment and/or dietary adjustments.
How are PKU patients affected?Learning impairments may result from PKU damage to the brain and neurological system in the absence of treatment. Aside from behavioral issues like frequent temper tantrums and self-harming episodes, PKU also exhibits other symptoms that go undiagnosed.
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Do you think that water pollution is worse now than it was in the past?
Yes, water pollution is worse than how it was before.
Earlier, when human civilizations had just begun to develop and make their way into the modern ages, they never really understood how much hard they were being on their resources. Since it was all theirs for the taking, it was obvious they never gave a second thought to how, what and why the way they were doing things was wrong.
This pollution started way back then and has only increased since then at an alarming rate. Rivers, lakes, ponds, even the oceans haven't been left untainted in this quest for becoming better.
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Do humans depend on photosynthesis?
A: No, humans cannot make food by photosynthesis, so they do not depend on photosynthesis for energy.
B: Yes, all of the food consumed by humans is plants or gets energy from plants, and plants produce their own food through photosynthesis.
C: Yes, but only those humans that avoid meat depend on plants that produce their own food through photosynthesis.
D: No, humans rely on animals for food, and neither humans nor animals depend on photosynthesis for food.
Answer:
B. Yes, all of the food consumed by humans is plants or gets energy from plants, and plants produce their own food through photosynthesis.
Explanation:
Photosynthesis is a chemical process that plants perform in order to get the energy that they need to survive and grow. The chemical that makes plants green, called chlorophyll, is the molecule that makes this reaction possible. Without photosynthesis, plants would not be able to get energy from the sun. The ability to create plant food from solar energy through photosynthesis is the process that underlies almost all life on Earth.
Answer:
The answer is B, yes
Explanation:
Thank you, also, Would you like to be friends?
Christiaan Eijkman shared the Nobel Prize in 1929 for the discovery of vitamins. Eijkman went to Java to isolate the pathogen causing beriberi, an illness that appeared to be contagious as it was common in prisons and among ship crews. Eijkman noticed that chickens fed a diet of white rice also suffered from a similar disorder. When the chickens were fed a diet of red rice, the chickens quickly recovered. What can Eijkman safely infer at this point from his observations? (5 points)
A. Humans with symptoms similar to those of chickens should change their diet.
B. White rice contains little nutritional value for humans and chickens.
C. Beriberi is most certainly not a pathogen.
D. Diet may be the cause of beriberi, but more research is needed.
Option D. He can infer that beriberi may be related to diet, but more and better studies are needed. Eijkman safely infers about beriberi at this point from his observations.
Beriberi is a deficiency of thiamin, more normally referred to as nutrition B1. Your body wishes thiamin to break down and digest the ingredients you consume, to hold your metabolism going, and help your muscle mass and fearful system do their jobs effectively. Beriberi can affect the cardiovascular device or valuable apprehensive gadget.
Beriberi is a situation that happens in individuals who are deficient in thiamine (diet B1). There are two main forms of Beriberi: moist Beriberi which affects the cardiovascular system and dry Beriberi which affects the apprehensive device.
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Why do nadh and fadh2 donate electrons to different electron transport chain complexes?.
In the electron transport chain, NADH gives its electrons to the first transmembrane complex, while FADH2 donates its electrons to the second transmembrane complex.
What part of the electron transport chain do NADH and FADH2 play?The electrons from the NADH and FADH2 molecules produced during the Krebs Cycle and Glycolysis are transported to the electron transport chain. A proton gradient is produced by the electron transport chain, which ultimately results in the generation of a significant quantity of ATP.
Both electron carriers, NADH and FADH2, contribute electrons to the electron transport chain. In the last phase of electron transport, the electrons convert O2 to water.
NADH and FADH2 send their electrons to the electron transport chain after receiving the electrons and undergoing reduction.
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Our current understanding of how chemical messengers act via signal transduction pathways had its origin in the pioneering work of ________________. ___________ and his colleagues at Vanderbilt University were investigating how the animal hormone epinephrine (adrenaline) stimulates the breakdown of the storage polysaccharide glycogen within liver cells and skeletal muscle cells. His research team discovered that epinephrine stimulates glycogen breakdown by somehow activating a cytosolic enzyme, glycogen phosphorylase.
The fact that chemical messengers function through signaling pathways stems from the pioneering work of Earl W. Sutherland and his colleagues at Vanderbilt University.
What are Signal transduction pathways?Signal transduction pathways involve the binding of extracellular signaling molecules and ligands to receptors located on the cell surface or within the cell, triggering events and responses within the cell. This response can alter cell metabolism, shape, and gene expression.The three main pathways leading to its activation are the GPCR pathway, the RTK pathway, and gated ion channels. What are the four steps of signaling?Step 1: Received. Signal reception is the first step in cell signaling and involves the detection of signaling molecules originating from the extracellular milieu.
Step 2: Induction.
Step 3: Response
Step 4: Reset to default.
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My mom ate all my homework :(
Answer:
oh nooo :(((((((((((((((((
distinguish between systolic and diastolic blood pressure GIVING BRAINLIEST
Answer:
The top number is the maximum pressure the heart exerts while beating (systolic pressure). The bottom number is the amount of pressure in the arteries between beats (diastolic pressure).
Explanation:
Brainliest please!!
Answer: Im not that sure :_
what the other person put they deserve brainliest
Explanation:
Where do obese women in their 30s and 40s—before the onset of menopause—tend to accumulate fat?.
In comparison to premenopausal women, men, perimenopausal women, and menopausal women accumulate more belly fat, giving them an "apple" body shape and increasing their risk of developing obesity-related complications.
What stage of life does a person's weight typically start to decline?Men and women experience different changes in total body weight. Men typically gain weight until they are about 55 years old, at which point they start to lose weight. A decrease in testosterone, the male sex hormone, may be responsible for this. Up until age 65, women typically gain weight; after that, they start to lose it.
Which of the following conditions is a health risk linked to obesity?Excessive blood pressure High triglyceride levels, low HDL cholesterol, or high LDL cholesterol.
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Explain why the cane toad has been so successful as an invasive species in australia. (site 1)
The cane toad became a pest after it was brought to Australia to control destructive insects in Queensland's sugar cane crops.
Cane toads can poison predators who try to eat them, and they continue to spread across Australia. The giant toad couldn't crush the beetle population, but it did manage to multiply it dramatically. Due to their highly toxic skin covered with bufotoxin, they have no natural predators and have invaded much of the north and east of the country.
It has taken root in more than 15 countries over the past 150 years. In the Environmental Protection and Biodiversity Conservation Act 1999, the Australian Government lists cane toad impacts as a major threat process. Healthy libido and a deadly hidden chemical defense system have made them one of the top 100 most invasive species on the planet.
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the dna double helix is stabilized by (choose the best answer): hydrogen bonds van der waals interactions the hydrophobic effect
The DNA double helix is held together by hydrogen bonds, van der Waals interactions, and the hydrophobic effect.
Which of the following stabilises the DNA double helix?The hydrogen bonds formed by complementary organic bases (a base pair), van der Waals forces, and hydrophobic interactions between the nitrogenous bases and the surrounding water sheath all contribute to the stabilisation of the DNA helical structure.
What kind of intermolecular attraction holds the DNA double helix together?The bases, sugars, and phosphate groups are tightly joined together by covalent connections in each of the linear threads (both within each component and between components). To create hydrogen bonds between the two strands, bases from one pair complementary with bases from the other.
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Mrna is synthesized in the _______ direction, which corresponds to the _______ of the protein.
mRNA is synthesized in the 5' to 3' direction, which corresponds to the terminus of the protein.
A highly conserved process that has been used in protein synthesis from mRNA templates throughout evolution. Polypeptide chains are produced from the amino terminus to the carboxy terminus of all mRNAs, which are read in the 5' to 3' direction. The RNA polymerase reads the template DNA strand in the 3′–5′ direction during transcription, whereas the mRNA is created in the 5′–3′ direction. Due to the mRNA's single strand, there are only three viable reading frames, and only one of them is translated.
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