The assertions that accurately define antigens are that they are seen as foreign.
What quality does an antigen possess?The majority of antigens have a high molecular weight and are made of proteins or polysaccharides, while they can also be made of lipids, polypeptides, nuclear acids, or other substances. Haptens are low-molecular-weight compounds that have the capacity to elicit an immunological response.
What does an antigen do and what is it called?Your immune system uses antigens as markers to determine whether or not something in your body is hazardous. Viruses, bacteria, cancers, and healthy bodily cells all include antigens.
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drag the stages of food processing to the correct locations in the figure. then drag the descriptions of what occurs during each stage.
The four fundamental functions of the digestive system are motility, digestion, absorption, and secretion. The digestive system transforms the food we eat into energy that our bodies can use.
Have a look for Complete question?
your body must fully break down food so that your cells can use its component molecules for energy and for building materials. drag the stages of food processing to the correct locations in the figure. then drag the descriptions of what occurs during each stage?
The primary functions of the digestive system include the following:
Digestion
All of these substances are transformed into molecules that are small enough to cross the gut lining and enter the blood, including proteins, lipids, carbohydrates, vitamins, minerals, and water. The digestive system breaks down our food so that the body can use it for energy, growth, and cell repair.
What is the ideal method for processing food?Ingestion, digesting, absorption, and evacuation are the three primary steps in food processing.
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Classify each description as applying to either heterochromatin or euchromatin. Please explain how you get your answer! Thank you!
Answer:
"Heterochromatin is densely packed, highly condensed chromatin that is usually inactive in terms of gene expression." - This description applies to heterochromatin. Heterochromatin is characterized by its dense, condensed structure and its inactivity in terms of gene expression."Euchromatin is less densely packed and more open, allowing for transcription and gene expression." - This description applies to euchromatin. Euchromatin is characterized by its less condensed, more open structure, which allows for transcription and gene expression."Heterochromatin is found in the centromere and telomeres of chromosomes." - This description also applies to heterochromatin. Heterochromatin is often found in the centromere and telomeres of chromosomes, which are regions that play important roles in chromosome segregation during cell division."Euchromatin is found in the intercalary region of chromosomes, which is the region between the centromere and telomeres." - This description applies to euchromatin. Euchromatin is often found in the intercalary region of chromosomes, which is the region between the centromere and telomeres. This region is usually more active in terms of gene expression compared to the centromere and telomeres, which are typically more tightly packed and inactive.Let me know if you have any further questions.
what is a lancelet? group of answer choices a small elongated marine invertebrate that resembles a fish but lacks jaws and obvious sense organs. a type of suspension-feeding invertebrate chordate also called a sea squirt none of the choices a small elongated marine invertebrate that resembles a fish but lacks jaws and obvious sense organs and a vertebral column
The lancelet is a small, elongated marine invertebrate that resembles a fish but lacks jaws and clear internal organs.
Lancelets or Cephalochordata are undeveloped vertebrates and are included in the chordata phylum or called Chordata Invertebrates. Lancelet has a body shape like a fish without fins and has a clear head shape. Lancelet's body is flat, elongated and transparent and has no jaws. Lancelet has no obvious organs. The head consists of the rostrum which functions to expel sand when digging holes, the mouth and oral features, which are a series of long protrusions as sensory organs. The lancelet's way of eating is by swallowing airborne organic matter particles entering through its wide mouth.
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plasma cells group of answer choices produce and secrete antibodies. are derived from t-lymphocytes. function in blood clotting. function in cell-mediated immunity. all of the choices are correct.
Differentiated t lymphocytes can differentiate into plasma cells, which have a number of uses. The right response is thus all of these selections are appropriate.
Plasma cells, which are differentiated t-lymphocyte white blood cells (WBCs), have the capacity to release immunoglobulin or antibodies. The primary cells in charge of humoral immunity, these cells are essential to the adaptive immune response. Without them, a person is deemed to have agammaglobulinemia and is particularly susceptible to recurrent illness. Here, the haematological lineage, structure, and function of plasma cells are investigated together with the clinical symptoms caused by unsuitable plasma cell growth and development. Factors produced by plasma cells are crucial for blood coagulation.
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ethylene is an organic complound porduced by reipining fruits. in a controlled experment, eseachers found that ethylene gas stimulated the ripening process in newly harvested druits. which o ht efolowing describes the most likely connection between natural ethylene production and frui ripening
Every fruit produces a particular amount of ethylene over the course of its lifecycle, and it is known as the "fruit-ripening hormone." However, when some fruits begin to ripen, their ethylene levels suddenly increase.
Most fruits contain a gaseous molecule called ethylene that starts the ripening process. Its level in under-ripe fruit is relatively low, but as fruit mature, they create higher amounts that speed up the ripening process or the stage of ripening known as the “climacteric.” The level of ethylene and rate of ripening is a variety-dependent process. Some apple types, like McIntosh, create astronomical levels of ethylene, which makes them difficult to store. They immediately soften and senesce in storage when harvested after the sudden surge in ethylene. Other types have a slower rise in ethylene and slower ripening rate.
Hence, ethylene molecule influence ripening by inducing changes over fruit covering.
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fragments of dna have been extracted from the remnants of extinct woolly mammoths, amplified, and sequenced. how might these fragments be used now? question 2 options: they may be used to clone live woolly mammoths. they may be introduced into relatives, such as elephants, to recreate certain mammoth traits. they may help us to understand the evolutionary relationships among members of related organisms. they may help study the relationships among woolly mammoths and other wool producers.fragments of dna have been extracted from the remnants of extinct woolly mammoths, amplified, and sequenced. how might these fragments be used now? question 2 options: they may be used to clone live woolly mammoths. they may be introduced into relatives, such as elephants, to recreate certain mammoth traits. they may help us to understand the evolutionary relationships among members of related organisms. they may help study the relationships among woolly mammoths and other wool producers.
The Human Genome Project collected human DNA from a number of unnamed contributors.
Why is DNA with short tandem repeats (STRs) important for DNA fingerprinting?Due to the tiny repeat size in a heterozygous individual, both alleles are comparable in size. These STRs are useful for human identification since the amount of repeats in STR markers can vary greatly between individuals.
What method might be the most logical one to use when figuring out what a specific DNA sequence in humans does, perhaps, for some purpose?Find a relatively identical sequence in a different species, create a knockout of that sequence there, and then observe the results.
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according to the central dogma, what is the intermediate molecule involved in the flow of information in a cell that should go in the blank?
According to the central dogma mRna is the intermediate molecule involved in the flow of information in a cell that should go in the blank.
An mRNA vaccine is a type of vaccine that produces an immune response by delivering molecules of antigen-encoding mRNA into immune cells, which use the designed mRNA as a blueprint to build foreign protein that would normally be produced by a pathogen (such as a virus) or a cancer cell.
These protein molecules activate an adaptive immune response, teaching the body to recognize and destroy the corresponding pathogen or cancer cells. The mRNA is delivered via a co-formulation of RNA encapsulated in lipid nanoparticles, which protect the RNA strands and aid in their absorption into the cells.
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Which statement best describes human eye color?
an incompletely dominant trait that follows non-Mendelian inheritance patterns
a polygenic trait that follows non-Mendelian inheritance patterns
an incompletely dominant trait that follows Mendelian inheritance patterns
a polygenic trait that follows Mendelian inheritance patterns
SAS
''A polygenic trait that follows non-Mendelian inheritance patterns'', is the statement best describes human eye color.
What is meant by non Mendelian inheritance?Any pattern in which characteristics do not segregate in line with Mendel's rules is referred to as non-Mendelian inheritance. These principles describe how qualities connected to a single gene on nuclear chromosomes are passed down across the generations. Each parent contributes one of the two potential alleles for a characteristic in the Mendelian system of inheritance. The distribution of phenotypes anticipated for a population of children may be calculated using Mendel's laws if the genotypes of both parents in a genetic cross are known. The proportions of phenotypes observed in the progeny occasionally do not match the values expected.Many diseases that affect the processes are impacted by non-Mendelian inheritance.Learn more about non Mendelian inheritance refer to :
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Answer: b, a polygenic trait that follows non-Mendelian inheritance patterns
Explanation:
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Which of the following is a cause of a DNA mutation?
O Changes in DNA
O Changes in chromosomes
O Changes in gene
O All of the above
The cause of DNA mutation is changes in DNA (option A).
What is mutation?Mutation is any heritable change of the base-pair sequence of genetic material.
Mutation can also be referred to as a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.
There are a variety of types of mutations, however, the two major categories of mutations are as follows:
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_____consists of the the brain and spinal cord, which occupy the dorsal body cavity and act as the integrating and command center of the nervous center. The primary interprets incoming sensory information and issue instructions based on past experience and current conditions.
The peripheral nervous system is made up of everything else, whereas the central nervous system is made up of the brain and spinal cord.
What is the name of the brain's spinal cord and associated nerves?The peripheral nervous system and the central nervous system make up the nervous system.
Which of the following is located in the midbrain's dorsal region, which regulates reflexes related to vision and hearing?The tectum (roof) or dorsal portion of the midbrain contains the rostral and caudal colliculi, which are connected to the cerebellum and involved with the visual and auditory reflexes, respectively. Sensory nerves transmit information to the brain and spinal cord such as touch, temperature, and pain.
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resource partitioning among different species question 26 options: develops mutualism. creates a predator-prey relationship. allows sharing of similar, scarce resources. undermines commensalism. fights parasitism.
In order to prevent rivalry between species and promote coexistence, resource partitioning or niche differentiation (a natural selection process that compels rivals to use resources in different ways) is a strategy.
Resource partitioning due to mutualism is possible.We utilize ecological modeling to show that a shared mutualist can temporarily partition resource niches by limiting growth rates, even if yield is determined by a resource outside of a mutualism.
What kind of resource partitioning is an example of?A notable illustration of resource partitioning is the anole lizard, which is found on Puerto Rico's island. Natural selection has resulted in the evolution of many species within this group that utilize various resources.
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How do muscles exert a kinetic force?
Due to the presence and motion of dispersed tissue mass, muscles have internal kinetic energy during dynamic contractions.
Explain about the Muscular force?The process through which skeletal muscle, in response to brain cues, transforms metabolic energy into an active force that pulls on the bones through intermediary connective tissue is known as muscle force generation.
Muscular force is any force that is produced when our muscles, such as our arms or legs, are used to generate it. Muscular force is a sort of contact force (any force which acts after touch). For instance, if you carry a brick off the ground, your muscles have to work to do so; hence, muscular force is being exerted here by the arms. Since muscular force is created by the mechanical contraction of muscles, it is a sort of mechanical force.
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Muscles have internal kinetic energy.
Briefing:During dynamic contractions, muscles exert their internal kinetic force which is their muscular force because of the existence and motion of dispersed tissue mass.
Describe the muscular force.The process through which skeletal muscle, in response to brain signals, converts metabolic energy into an active force that pulls on the bones through intermediary connective tissue is known as muscular force generation.
What is kinetic energy?The energy an object because of its motion is called kinetic energy.
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What is the distinction between the accuracy of the system that shows the processes and cells involved in this growth and development and the actual process of cellular division in the human changes?
Here is the photo of the system
The distinction between the accuracy of the system that shows the processes and cells involved in this growth and development and the actual process of cellular division in the human changes is its more comprehensive and detailed.
What is a Cell?This is referred to as the simplest unit of life and undergoes aggregation to form tissue and organs which are important in the daily functioning of the body.
The system that shows the processes and cells involved in this growth and development are always in a clearer and brief form when compared to the actual process of cellular division in the human changes.
The clearer form makes it to be more comprehensive and detailed to the subject involved which is therefore the reson why it was chosen as the correct choice.
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what is the diffusion of water through a selectively permeable membrane
Osmosis is a sort of simple diffusion in which water molecules move from regions of high water concentration to regions of lower water concentration through a selectively permeable membrane.
What membrane has selective permeation?Protein and fat are found in extremely small quantities in the cell membrane.A partially permeable membrane is one that only permits specific chemicals to pass through it.
What sort of membrane uses selective permeability?A phospholipid bilayer innermost layer which envelops each cell in our body is the most typical illustration.Its interior membranes of the an egg are another illustration of a membrane that permeates selectively.A phospholipid bilayer covers every cell in our body.
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polypeptides in the er are usually larger than polypeptides synthesized from the same mrna that have not entered the er. (True or False)
True because the size of polypeptides inside the ER is typically less than that of polypeptides made from the same mRNA. On the rough ER, proteins for plasma membrane transmembranes are synthesized.
How do polypeptides behave in the ER?As a result, these polypeptides fold into their three-dimensional conformations within the ER with the aid of the molecular chaperones that aid in polypeptide chain folding. For instance, BiP, a chaperone from the Hsp70 family, is one of the main proteins in the ER lumen.
How is a polypeptide sequence selected to enter the endoplasmic reticulum (ER)?The interaction of the signal peptide sequence, which is a sequence of at least eight hydrophobic amino acids at the amino-terminal end of the polypeptide, results in targeting the endoplasmic reticulum. A "signal recognition particle" joins with the emerging signal sequence (SRP).
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Type of water pollution which comes from a one source.answer choicesO Point-source pollutionO Nonpoint source pollutionO both of them
A point source is a single, identifiable source of pollution, such as a pipe or a drain.
What is point and non point source of pollution ?Point-source pollution is defined as contamination that comes from a single, distinguishable source, such as a manufacturing discharge pipe or sewage treatment facility. Nonpoint-source pollution is contamination that is the result of several sources, or points.
Point sources or scattered sources are both responsible for water pollution. A pipe or channel, such as one used for sewage discharge from a city sewer system or an industrial site, is referred to as a point source. Various contaminants can come from a very large, unconstrained area known as a scattered (or nonpoint) source.
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the term binary fission is best applied to _____.
Prokaryotes, which include bacteria, divide into new cells in a process known as binary fission.
binary fission, also known as asexual body division into two new bodies, When an organism divides into two halves (cytokinesis) through binary fission, it doubles its genetic material, or deoxyribonucleic acid (DNA), with each new creature acquiring one copy of the latter.
Learn how dangerous bacteria can cause pneumonia, cholera, typhoid, and other diseases.
Prokaryotic organisms mostly reproduce through binary fission. Depending on the axis of cell separation, binary fission in protists is frequently classified as transverse, longitudinal, or other forms. In some creatures, such tapeworms and scyphostome polyps, regular transverse fission is known as strobilation.
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14. A dieback, or population crash, often occurs after a species ________ its environmental carrying capacity. A. meetsB.overshootsC. undershootsD. oscillates aroundE. decreases
A dieback, or population crash, often occurs after a species overshoots its environmental carrying capacity.
What is a population crash?
Human depopulation (also called underpopulation, depopulation, or population collapse) is the reduction in the size of the human population. In the long term, from prehistoric times to the present, the total population of the planet continues to grow. However, current projections suggest that this long-term trend of steady population growth may come to an end.
The world's population grew very slowly until the industrial revolution began. After about 1800, growth peaked at 2.09% per annum in 1967-1969, but then declined to 1.05% by 2020 due to the global collapse in the total fertility rate. Absolute global growth accelerated after peaking at 92.9 million in 1988, but will drop to 81.3 million in 2020 and reach zero in the 21st century. Examples of this emerging trend include Japan, whose population is currently (2015-2020) declining at an annual rate of 0.2%, and China, whose population may begin to decline in 2027 or earlier. By 2050, Europe's population is expected to decline by 0.3% each year.
Therefore, A dieback, or population crash, often occurs after a species overshoots its environmental carrying capacity.
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salmonella, listeria, escherichia coli o157:h7, and campylobacter are the bacterial foodborne illnesses of particular interest since they are the ones most often associated with
Vegetable Row Crops (such as leafy included because, among other reasons, most foodborne Campylobacter) were associated with Escherichia coli E. coli O157 infections the most frequently.
What is the main factor behind food-borne illnesses?The top five risk factors that lead to outbreaks of foodborne illness most frequently are:
incorrect hot/cold storage temperatures for possibly dangerous foods.
inappropriate cooking temps.
tools and equipment that are filthy or polluted.
employee hygiene and health issues.
untrustworthy food sources
What type of bacterium causes foodborne disease the most frequently?One of the most typical causes of foodborne sickness in the US is a variety of bacterium called Campylobacter. Most Campylobacter foodborne disease cases are sporadic and not associated with outbreaks.
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what is the average radius of a piece of double-stranded dna in water that has a link length of 4 nm and and is 1044105 links long?
So the radius here. So, if we use the formula above, the radius that will become 0.283653586 centimeter is 2 c equates to 2 pi.
So it is the point to ponder. If two strands are split and linked with 871 nanometers, they are separated repeatedly.
The spheres in the dsDNA case have a radius of 1 nm, whereas the spheres in the ssDNA example have a radius of 0.5 nm.
Because the average spacing between bases for dsDNA is 0.34 nm and 0.63 nm for ssDNA, the dsDNA sphere represents 6 base pairs and the single stranded sphere represents 1.5 bases.
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Who is credited with first observing cells?
Robert Hooke in 1665 was credited with first observing cells.
What is a cell?
Cells are the structural, functional, and biological units of all living things. They are the smallest, most fundamental unit of life that is responsible for all of life's operations.
What are the functions of a cell?
They give the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks. Cells also contain the genetic material of the organism and are capable of self-replication.
What are the types of cells and their functions?
The Four Primary Cell Types are:
Cellular epithelium. These cells, which are nerve cells, are closely bound to one another. These cells—Muscle Cells—are designed specifically for communication. Connective Tissue Cells are cells that have been specifically designed for contraction.
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Which of the following cannot be patented?
The following cannot be patented is New species of plants as according to the patent Act, the ethical, political, and medical bases can not be patented .
Additional information: Biopatent is an professional proper from the authorities which offers the only monopoly to apply a selected cloth for business exploitation of microorganisms strains, mobileular lines, GMO flowers, and animals, a protein encoded DNA sequence, product, and its applications.
Biopiracy is the patenting and exploitation of bioresources with out right authorization. Biopiracy done via way of means of many agencies and multinational companies. Bioresources are the ones organisms that offer business benefits. Every us of a has its bioresources.
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The complete question is Which of the following cannot be patented?
(a) GM plants
(b) New substance of utility
(c) New species of plants
(d) All the above
which molecule, found in gram-negative bacterial cell walls, is an excellent stimulator of the alternative complement cascade?
Lipopolysaccharide molecule, found in gram-negative bacterial cell walls, is an excellent stimulator of the alternative complement cascade.
Large molecules called lipidopolysaccharides (LPS), which are bacterial toxins, are made up of a lipid and a polysaccharide. They may be found in the outer membrane of Gram-negative bacteria and are made up of an O-antigen, an outer core, and an inner core that are all connected by a covalent link. However, there are some endotoxins (in the original sense of toxins that are inside the bacterial cell and are released when the cell disintegrates) that are not related to LPS, such as the so-called delta endotoxin proteins produced by Bacillus thuringiensis. Today, the term endotoxin is frequently used synonymously with LPS.
Lipopolysaccharides interact largely with the immune system to significantly affect human health. LPS is a powerful immune system stimulator and pyrogen.
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What is the primary reason we sweat?
Its primary job is to regulate body temperature. The skin's surface cools when the water in the perspiration evaporates. Sweat also assists in gripping by moistening the hands just a little bit.
Glands in the dermis, the skin's deeper layer, are responsible for producing sweat. Although sweat glands are found throughout the body, they are most prevalent on the forehead, armpits, palms, and soles of the feet. While salts do appear in sweat, water makes up the majority of it. Its primary job is to regulate body temperature. The skin's surface cools when the water in the perspiration evaporates. Sweat also assists in gripping by moistening the hands just a little bit. The term for excessive perspiration is hyperhidrosis.
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Genetic counselors are health professionals with specialized graduate degrees and experience in the areas of medical genetics and counseling. As part of their job, they work as members of a healthcare team to provide information and support to families who may be at risk for a variety of genetic conditions.
Pretend you are a genetic counselor and you are meeting with Jack and Diane. What advice would you offer them about having another child? What support would you offer them knowing they already have one child with hemophilia? Use the space below to write a short paragraph.
Answer:
they work as members of a healthcare team to provide information and support to families who may be at risk for a variety of genetic conditions.
Explanation:
They work as members of a healthcare team to provide information and support to families who may be at risk for a variety of genetic conditions.
Who are genetic counselors?
The members of your healthcare team that deal with genetic issues are crucial. In addition to interpreting genetic test results based on your personal and family history, genetic counselors can help patients who are interested in learning more about how inherited diseases and conditions may affect them or their families.
These professionals have advanced training in medical genetics and counseling. Before or after genetic testing, individuals or families can visit with genetic counselors.
Prenatal, pediatric, cancer, neurology, ophthalmology, psychiatry, and many other specialties are all covered by genetic counselors. Numerous telemedicine methods allow genetic counselors to consult with patients.
Therefore, They work as members of a healthcare team to provide information and support to families who may be at risk for a variety of genetic conditions.
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what does "Parents can choose to screen embryos created via in vitro fertilization (IVF) for sex or diseases, a process known as pre-implantation genetic diagnosis” (Ghose)" mean?
Answer:
parents can check if the embryo has a disease
if it does, they can terminate the pregnancy
some of these are caused by a change in a single gene known as a single gene disorder
if one or both parents are carriers of a genetic disorder, they have a chance of passing it to their children even if they themselves are healthy.
Explanation:
pre-implantation genetic diagnosis aka PGD
checks for diseases in embryos like
Cystic fibrosis.
Tay-Sachs disease.
Spinal muscular atrophy (SMA)
Hemophilia.
Sickle cell disease.
Duchennes muscular dystrophy.
Thalassemia
Down syndrome
some of these are caused a change in a single gene known as a single gene disorder
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learngeneticsutahedu
How many chromosomes are visible at the beginning of mitosis? How many are in each daughter cell at the end of mitosis? The little orange T shaped things on the cell are: What happens to the centrioles during mitosis? 3. Identify the stages of these cells: 4. Draw a cell in each of the following phases. Be sure to represent the major events of each phase and label structures. Prophase Prometaphase
For most people there are 46 chromosomes visible at the beginning of mitosis. T shaped things on the cell are centrioles ,increases in size , copies its DNA , prepares to divide , and divides.
Do you have 46 or 23 chromosomes?The average human has 46 chromosomes, or 23 pairs of chromosomes.All of the genes in the human body are found on lengthy strands of DNA called chromosomes.
Describe chromosomes in plain English.?a component that can be found in a cell's nucleus.Proteins and DNA are arranged into genes on a chromosome.There are typically 23 pair of chromosomes in each cell.
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which of the following is not true? question 1 multiple choice options oxygen 16 evaporates more readily from the ocean than oxygen 18 oxygen 16 and oxygen 18 are found in roughly equal amounts in ocean water the nucleus of oxygen 18 contains two more neutrons than the nucleus of oxygen 16 both oxygen 16 and oxygen 18 are found in the shells of marine organisms
Oxygen 16 and oxygen 18 are found in roughly equal amounts in ocean water is not true.
Both oxygen-16 and oxygen-18 are isotopes of the element. The O-16 isotope, which is lighter and indicates a warmer environment, and the O-18, which is heavier and is a reliable indicator of a colder climate The effects of both components, namely precipitation and evaporation, are responsible for these climatic variations.Because the lighter O-16 isotope evaporates more quickly, there is a lot of O-18 in the ocean in tropical areas where the temperature is relatively high. Additionally, because O-18 is significantly heavier than O-16 and begins to condense as it begins to rain, the water droplets that are created during rainfall are enriched with O-18.Due to ongoing processes like precipitation and evaporation, it is usually discovered that Oxygen-16 and O-18 are present in different amounts or proportions in ocean water.To know more about isotope check the below link:
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A recent discovery has suggested that a gene mutation results in several amino acid substitutions within an active site. The following substitutions have been identified and are each expected to properly fold and form the active site: Normal protein amino acids Valine Leucine Valine Substitutions Lysine Arginine Arginine Deleted and replaced with a coenzyme capable of covalent binding Histidine (note no mutation) Serine Histidine Aspartate Glutamate It was also noticed that a coenzyme molecule containing a hydroxyl (-OH) group binds to the mutated protein in approximately the same location as the original serine but does not alter the structure of the protein in any way. Based on your knowledge of amino acids, enzymes, and catalysis, which of the following is a REASONABLE conclusion? The mutant protein cleaves on the carboxy side of phenylalanine. b. The mutant protein cleaves peptide bonds on the carboxy side of glutamate or aspartate. The mutant protein cleaves peptide bonds on the carboxy side of lysine or arginine. d. The mutant protein functions identical to chymotrypsin. a. C.
Answer:the answer is A
Explanation:
T or F once a motor neuron has fired, all the muscle fibers in a muscle contract.
All muscle fiber doesn't contract when a motor neuron gas fired. The given statement is false.
The neuromuscular junction (NMJ), a synaptic connection where the peripheral nervous system contacts skeletal muscle fibers, is the level at which muscle and nerve communicate. The NMJ controls vital processes like breathing and voluntary movements of the body.
A substance is released by the motor neurons and is then taken up by the muscle fiber. By instructing the muscle fiber to contract, this causes the muscles to contract. Neurons in the spinal cord transmit information from the brain. These signals are sent to the muscles, instructing the muscle fibers to contract, causing the muscles to contract and contract.
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