In an alpha helix, the helix is right handed.
What is an alpha helix?
It is a rod like structure, where the inner section is a tightly coiled chain. The side chains extend in an outward direction in a helical array. In order to stabilize, the alpha helix takes advantage of the hydrogen bonding between the groups CO and NH of the main chain.
The alpha helix is most frequently used for interactions between DNA-protein interfaces that are sequence specific.
The alpha helix’s size is the same as the width of the major groove of DNA, which makes sure they fit tight together. At the same time, the side chains on the helix, which are protein, probe available base pairs.
Hence, the helix is right handed in an alpha helix.
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process of assembeling a protein on the basis of the information in an rna molecule
Answer:
translation.
Explanation:
translation assembles amino acids to form the polypeptide chain in ribosomes.
What do genes regulate?
A. only the senses
B. all processes of the body
C. when a hormone is released
D. only physical traits
Answer:d
Explanation:they make your physical traits
Which type of earths crust caused these layers to be higher in the background than they are in the foreground
A. Uplift
B. Vibration
C. Shearing
D. Compression
Answer:
the correct answer is objective A
ardi s intermediate form of bipedality included the use of: a. longer hind limbs for clinging and leaping. b. palms and feet to move along tree branches. c. a tail. d. none of the above.
In ardi's intermediate type of bipedality, moving over tree branches with the palms and feet is incorporated.
The capacity to stand erect and move on two legs is known as bipedalism. Only humans employ this position as their main form of propulsion, however many other primates can stand up and move around for brief periods of time.
Bipedality may have started as early as 6 million years ago, according to fossil evidence. Our ancestors, however, made their first steps as devoted bipeds with Australopithecus, an early hominid that emerged in Southern and Eastern Africa between 4 and 2 million years ago. However, little is still known by scientists regarding the conditions that gave rise to this feature.
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3. Why does oxygen diffuse into the blood from an alveolus in the lungs?
A The oxygen concentration in the alveolus is greater than the carbon dioxide concentration in
the blood.
B The oxygen concentration in the alveolus is greater than in the blood.
C The oxygen concentration in the blood is greater than in the alveolus.
D The oxygen concentration in the blood is greater than the carbon dioxide concentration in the alveolus.
B The oxygen concentration in the alveolus is greater than in the blood.
the cell type that always maintains direct junctional contact with other cells of the same type is the:
The cell type that always maintains direct junctional contact with other cells of the same type is the b.
What is Osteocytes ?Osteocytes, which make up 90% to 95% of all bone cells and reside inside the bone matrix, have long been viewed as passive bystander cells in contrast to osteoblasts and osteoclasts, whose actions result in bone gain and loss and whose dysfunction results in growth abnormalities and osteoporosis.
What about cells?There are many billions of cells in a human body. They give the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks. Prokaryotic cells and eukaryotic cells are two different types of cells. Although prokaryotic and eukaryotic cells have different shapes (see prokaryote, eukaryote), they are quite similar in terms of their molecular make-up and functions. Proteins, polysaccharides, and nucleic acids make up the majority of the molecules in cells. The cell membrane, the nucleus, and the cytoplasm are the three components that make up a cell. Intricate arrangements of microscopic fibers and hundreds or even thousands of tiny, unique structures known as organelles can be found in the cytoplasm. The parasitic bacteria Mycoplasma gallicepticum, which inhabits the respiratory, genital, and urinary systems of primates, is thought to be the tiniest known creature capable of autonomous development and reproduction. Mycoplasma is the name of the cell used in the study. It has a 0.0001 mm diameter.A single cell makes up a unicellular creature, also referred to as a single-celled organism, as opposed to a multicellular organism, which is made up of numerous cells. Prokaryotic and eukaryotic organisms are the two broad categories into which all organisms fall.Learn more about cells here:
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what is the primary function of the calvin cycle? group of answer choices to produce carbon dioxide for use in the light reactions of photosynthesis to regenerate atp for use in the light reactions of photosynthesis to produce oxygen by oxidizing water to produce simple sugars from carbon dioxide
The primary function of the Calvin cycle is to produce simple sugars from carbon dioxide. Option D.
The function of the Calvin Cycle is to create three-carbon sugars that plants can use to build other sugars such as glucose starch and cellulose that they use as structural building materials. It takes it directly and turns it into plant matter.
The basic function of the Calvin cycle is to convert solar energy into chemical energy. A biochemical pathway of photosynthesis that uses ATP and NADPH to convert carbon dioxide to glucose. carbon fixation. Carbon uptake from carbon dioxide into organic compounds by autotrophs. It is the cycle of chemical reactions that binds carbon from the carbon cycle to sugars. It is found in the chloroplasts of plant cells.
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There are four primary categories of energy expenditure. Of the following, which one represents the majority of total energy use by the body?.
There are four primary categories of energy expenditure, and basal metabolism is one representing the majority of total energy use by the body.
What is Basal Metabolism
Basal Metabolism is the minimum energy required to sustain life.
Basal metabolism is the number of calories needed by the body to carry out its basic functions such as breathing, moving the heart rate, brain function and various activities in the body over time.
Even when eating, absorbing to processing food also requires calories.
In essence, all the small parts in the body are like engines that burn gasoline as they work. Never stop during life, even keep working while sleeping. Just like a car, where when the car starts, gasoline is still used.
The more we move or activity, the more gasoline is burned. A simple example, the lungs burn energy when breathing. They will work harder when climbing stairs than when sitting. That is, whatever we do above the Basal Metabolism level, the more gasoline (energy) we use. The more active we are in daily life, the more our metabolism will increase.
Another way to increase metabolism is to exercise regularly. Exercise can not only increase metabolism, but also can burn energy in cells faster.
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Which type of mutation causes cystic fibrosis?
Answer: cystic fibrosis transmembrane conductance regulator (CFTR) gene.
Explanation:
Hello!
The type of mutation which causes cystic fibrosis is a mutation in the CFTR gene. (Cystic Fibrosis Transmembrane Conductance Regulator)
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what information could be obtained from wolf scat? a. dna profiles b. vegetation preference c. presence of arthritis d. amount of urea e. time since last meal
DNA profiles could be obtained from wolf scat. DNA profile can inform a scientist about the origins of the sample's DNA, including whether it came from a man, woman, or any other type of organism.
DNA profiling is the process of obtaining a particular DNA pattern, or profile, from an individual or a sample of body tissue.
Human DNA profiles can be used to establish parentage or determine the source of a DNA sample from a crime scene.
The following purposes of DNA profiling include identifying the likely source of a bodily fluid sample connected to a crime or crime scene and revealing family links.
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The process of acquiring antibiotic resistance by means of bacteriophage activity is called.
The process of acquiring antibiotic resistance by means of bacteriophage activity is called transduction.
Antibiotics are the chemical agents that slow down or cause the complete death of the bacteria. The antibiotics can be used as medication during bacterial diseases. The widely used antibiotics are: penicillin, cephalosporins, tetracyclines, etc.
Bacteriophage can be simply called phages. These are the viruses that are capable of infecting and replicating only in bacterial cells. These are not harmful to any other form of living organisms. The genetic material of phages can be either DNA or RNA. Bacteriophages can have varying shapes. The examples of phage is T-even phage.
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which class of antibiotics acts to inhibit the synthesis of rna and dna, thus stalling bacterial replication
Fluoroquinolones are the class of antibiotics which inhibits RNA and DNA synthesis, which halts bacterial replication.
What are Fluoroquinolones antibiotics?
As we know, antibiotics are medicines that destroy or stop the growth of pathogenic microorganisms. Fluoroquinolones are such antibiotics, or bacterial agents, that are used to treat respiratory tract infections like pneumonia, sinusitis, bronchitis, and even urinary tract infections. These groups of antibiotics are effective against gram +ve and gram –ve bacteria as well.
Fluoroquinolones are FDA approved. They include levoflaxin, ciproflaxin, mixifloxacin, delafloxacin, etc.
Hence, Fluoroquinolones are antibiotics that have the ability to inhibit RNA and DNA growth.
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after ovulation levels of prgesterone rise sharply what is the primary function of progesterone at this point in the menstrual cycle
The most crucial function of progesterone is preparing your uterus to receive, implant, and sustain a fertilized egg during pregnancy.
Progesterone's primary role during the menstrual cycle is what?Progesterone gets the endometrium ready for the possibility of getting pregnant following ovulation .The lining becomes thicker as a result, getting ready for a fertilized egg. Additionally, it stops the uterine muscles from contracting in a way that would make the body reject an egg.
What three jobs does progesterone perform?A key player in maintaining pregnancy, getting the body ready for conception, and controlling the monthly menstrual cycle, progesterone is a hormone that activates and controls vital processes.
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List 2 Fluids for each that are used in the Home, school/work and outdoors.
The types of fluid for the places mentioned include the following below:
1. Home - Oil, water
2. School/work - Liquid soap, Oxygen.
3. Outdoors - Oxygen, water
What is a Fluid?This is referred to as a substance or compound and is usually in the form of liquid or gas. It has the ability to continually flow when it is subjected to shear stress or external force.
There are various types of fluids which have their individual properties which is based on their structure and atoms such as oil which is used in the home for cooking various types of food substances.
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Answer:
Home: Cooking Oil is used to cook a variety of vegetables/ foods, Water is a basic need to live and we drink it everywhere including our homes.
School: Liquid soap is used for clean windows, floors and sometimes ourselves, Oxygen is also a basic need just like water to live but for breathing.
Outdoors: Engine Oil is a liquid and used to repair cars and Gas is a fuel used to run cars and vehicles
which statements are true of capillaries? check all that apply. question 17 options: capillaries are found in abundance in areas of high metabolic activity. capillaries do not branch. capillaries are made of endothelium and loose connective tissue. capillaries can form networks.
Blood is delivered to human tissues by blood arteries, which act as conduits or channels. Two tube-like closed systems comprised of the vessels start and stop at the heart.
What is high metabolic activity ?pertaining to metabolism (the total of all chemical changes that take place in a cell or an organism to produce energy and basic materials needed for important life processes).
These regions "lit up" after the scan is finished. Cancer cells frequently, but not always, fit this description of being hypermetabolic. Additionally, not all hypermetabolic conditions are cancer. The diagnosis method involves many steps, including a PET scan.Physical activity level - powerful muscles require a lot of energy to burn. Exercise regularly to build muscle and train the body to burn calories more quickly even when at rest. Drugs, such as nicotine or caffeine, can raise the BMR.What is Endothelium ?The endothelium, which is made up of a monolayer of endothelial cells, is in direct touch with the blood, lymph, and moving cells because it is the inner cellular lining of the blood vessels (arteries, veins, and capillaries).
Vascular endothelial cells, which make up the endothelium in blood vessels, carry out critical functions for blood flow.The endothelium controls blood flow while acting as a permeable barrier for the blood vessel. Endothelial cells are essential for applications in basic research including blood brain barriers, diabetes, angiogenesis, inflammation, wound healing, and other cardiovascular illnesses.Blood is transported from the right ventricle to the lungs and back to the left atrium by one system, the pulmonary arteries. The systemic vessels are the other system that transports blood from the left ventricle to the tissues throughout the entire body before returning it to the right atrium. Blood vessels are categorized as arteries, capillaries, or veins based onTo know more about Capillaries please click here ; https://brainly.com/question/64497
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in the arctic region, the arctic fox and the ptarmigan (a small bird species) both grow a snowy white coat during the winter for camouflage. these similar phenotypes are an example of: group of answer choices vestigial structures homologous structures convergent evolution homologous recombination
In the arctic region, the arctic fox and the ptarmigan both grow a snowy white coat during the winter for camouflage these similar phenotypes are an example of analogous structures.
The proof of the Convergent Evolutionary relationship among the species is provided by Analogous Structure. Convergent evolution played a role in the development of the species' common features. These are the architectural forms that serve similar purposes. However, these structures are not comparable anatomically. This indicates that their anatomical structures are distinct.
We can use the difference between a bat and a butterfly as an illustration. Both a bat's and a butterfly's wings serve the same purpose. They assist in flying them. Thus, the purpose remains the same. However, the anatomical makeup is different. Bones and skin are used in the development of Wings of Bat. However, the butterfly's wings are made entirely of different materials.
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what is the major environmental consequence of rapid population growth in the mountain west region of the united states?
The biggest environmental consequence of the United States' Mountain West region's rapid population growth: Strain on physical resources, such as water.
The correct option is d.
Rapid population growth is an increase in a population's size brought on by greater birth rates and lower death rates. Short-term food shortages and restricted resources are two effects of fast population increase.
Rapid population expansion has a negative consequence on a nation's economy and increases waste production and pollution as well as the demand for jobs, which is expanding, and on housing, schools, and infrastructure.
The increase in population in United States' Mountain West region has a significant impact on domestic resource demand, particularly that for food, energy, and water, as well as on environmental degradation and climate change. Almost no significant issue confronting America has a solution that would be simpler if the country's population were bigger.
The complete question is:
What is the major environmental consequence of rapid population growth in the Mountain West region of the United States?
Choose one answer.
a. Reduction of grazing lands
b. Land degradation
c. Ozone depletion
d. Strain on physical resources, such as water
e. Rapid climate change
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researchers have developed a drug that disrupts gene expression in a parasitic species of fungi. the drug functions by preventing the complementary binding of trna with an mrna molecule. this drug most likely targets the
The medication will work by inhibiting tRNA from attaching to Ribosomes.
The ribosome is an mRNA molecule located in the cytoplasm of a cell that has a codon similar to tRNA. RNA and protein make up ribosomes.
The ribosome is also involved in protein synthesis. Therefore, the complementary binding of tRNA to Ribosome will not occur, thereby preventing the disruption of gene expression in a parasitic species of fungi.
Consequently, we can draw the conclusion that the medication will work by blocking the binding of tRNA to Ribosome.
The RNA-induced silencing complex (RISC) is a ribonucleoprotein complex made up of proteins that collaborate with regulatory short non-coding RNAs (sncRNAs), such as small interfering RNAs (siRNAs) and microRNAs, to control gene expression through the RNA interference (RNAi) pathway. Because these short non-coding RNAs (sncRNAs) are complementary to or nearly complementary to messenger RNAs, they can bind to specific mRNA regions and activate RNA interference (RNAi) through mRNA degradation, translational repression, etc. The Argonaut (Ago) protein, which cleaves target mRNAs, is the central element of the RISC complex.
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in july 2015, a report[1] was released indicating the gram-negative bacterium pseudomonas aeruginosa was found on hospital sinks 10 years after the initial outbreak in a neonatal intensive care unit. p. aeruginosa usually causes localized ear and eye infections but can cause pneumonia or septicemia in vulnerable individuals like newborn babies. explain how the current discovery of the presence of this reported p. aeruginosa could lead to a recurrence of nosocomial disease.
The current discovery of the presence of this reported p. aeruginosa could lead to a recurrence of nosocomial disease as Nosocomial infections, also known as hospital-acquired infections, are the infections that are contracted within a hospital environment.
Transmission of these infections usually occurs via healthcare workers, patients, hospital equipment, or intravenous injections.
Pseudomonas aeruginosa may be a commonly typified, gram-negative, aerobic–facultatively anaerobic, rod-shaped bacterium that can cause illness in plants and creatures, counting people.
A species of considerable therapeutic significance, P. aeruginosa could be a multidrug-safe pathogen recognized for its ubiquity.
Its inherently progressed anti-microbial resistance components, and its affiliation with genuine sicknesses – hospital-acquired diseases such as ventilator-associated pneumonia and different sepsis disorders.
A hospital-acquired contamination, too known as nosocomial contamination (from the Greek nosokomeion, meaning "clinic"), is a disease that's obtained in a health care office.
In both healing centers and nonhospital settings, it is now and then instep called a healthcare-associated disease.
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Could you help me with this question I don't understand it
The principle relate to tree ring dating as the organism have evolved by slow gradual uniform changes
The principle of uniformitarianism says that the present is the key to the past and the principle has a profound impact on the science and geology and the idea that earth has always changed in uniform ways and that the present is the key to the past and this principle to understanding earth history and Darwinian evolution uses the principle of uniformitarianism as the central idea of descent with modification that organism have evolved by slow gradual uniform changes and the simpler organism the older it is assumed
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true or false: in multicellular organisms, genes are regulated in the same way to ensure that gene expression levels are constant regardless of cell type or developmental stage.
False, in multicellular organisms, genes are not regulated in the same way to ensure that gene expression levels are constant regardless of cell type or developmental stage.
Gene regulation is the method of controlling which genes in a cells DNA are expressed (used to make a purposeful product which include a protein).
Different cells in a multicellular organism may also explicit very specific units of genes, despite the fact that they include the identical DNA.
The set of genes expressed in a cell determines the set of proteins and purposeful RNAs it contains, giving it its specific properties.
In eukaryotes like humans, gene expression entails many steps, and gene law can arise at any of those steps. However, many genes are regulated commonly at the extent of transcription.
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Question 4 of 25 These images show models of a sugar molecule made during photosynthesis and an amino acid molecule. How could the models be used to support the idea that the amino acid molecule contains carbon atoms from sugar molecules made by photosynthesis? © A. Both molecules contain a chain of carbon atoms. © B. The molecules have similar shapes. O C. The molecules contain all the same types of atoms. © D. Both molecules contain stored chemical energy.
The models can support the idea that the amino acid molecule contains carbon atoms from sugar molecules made by photosynthesis because both molecules contain a chain of carbon atoms. So the correct option is A. Both molecules contain a chain of carbon atoms.
What is photosynthesis?Photosynthesis is a process in which inorganic matter is converted into organic matter by the energy provided by sunlight. Glucose molecules are then created from carbon dioxide and oxygen is released. This process occurs in photoautotrophic beings, that is, they produce their own food and do not need to obtain it from external sources but can be transformed from light.
The amino acids in plants are going to be formed by amination and transamination processes, it requires certain bases to be able to form as pre-existing amino acids or the components that it will need for its formation, provided by molecules within the cells
Therefore, we can confirm that the correct option is A. Both molecules contain a chain of carbon atoms.
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What is the effect of a nucleotide-pair substitution that results in a nonsense mutation in a gene?.
An additional kind of substitution is a nonsense variation. The changed DNA sequence, however, results in a stop signal that prematurely tells the cell to stop producing proteins, as to creating change in amino acid.
Where is DNA located in a human?Every cell in the body has DNA inside its nucleus. Its components are carefully packaged inside structures called chromosomes. Most individuals have 46 pairs of chromosomes, or 23 pairs each pair.
What is DNA made of?What is DNA composed of? Nucleotides are the chemical units that make up DNA. Three components make up these building blocks: a phosphate group, a sugar group, and one of four different nitrogen bases. Chains of nucleotides with alternating sugar phosphate groups are linked to form a strand of DNA.
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which of the following is an enzyme which results in staphylococcus aureus being more invasive than staphylococcus epidermidis?
The enzyme which results in Staphylococcus aureus being more invasive than Staphylococcus epidermidis is Hyaluronidase.
Hyaluronidase is an enzyme that breaks down primarily hyaluronic acid and it splits it into polysaccharides and is used in medicine in conjunction with other drugs to speed their dispersion and delivery.
Staphylococcus aureus encodes for a secreted hyaluronidase, hysA. Hyaluronidases are bacterial enzymes that cleave hyaluronic acid (HA) yielding unsaturated disaccharides. Initially, little was known about the regulation of this enzyme as well as its roles in Staphylococcus aureus physiology and pathogenesis.
Hyaluronidase is produced by S. Aureus as a mechanism to penetrate the connective tissue barrier and thereby establishing infections.
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Complete question:-
Which of the following is an enzyme which results in Staphylococcus aureus being more invasive than Staphylococcus epidermis?
A) lipase
B) M protein
C) hyaluronidase
D) pyrogens
E) neuraminidase
the diagnosis for this patient is likely an autoimmune disease called . in which case, the patient's immune system is making antibodies that bind to , decreasing their function. inhibitors of are commonly used to treat the effects of this disease. in severe cases, the may be removed to reduce the release of hormones that stimulate antibody-producing cells. temporary removal of the harmful antibodies from the blood may be accomplished by a technique called .
The diagnosis for this patient is likely an autoimmune disease called myasthenia gravis. In which case, the patient's immune system is making antibodies that bind to acetylcholine receptors, decreasing their function. Inhibitors of acetylcholinesterase are commonly used to treat the effects of this disease. In severe cases, the thymus may be removed to reduce the release of hormones that stimulate antibody-producing cells. Temporary removal of the harmful antibodies from the blood may be accomplished by a technique called plasmapheresis.
What is myasthenia gravis?Myаstheniа grаvis (MG) is а chronic аutoimmune disorder in which аntibodies destroy the communicаtion between nerves аnd muscles, resulting in weаkness of the skeletаl muscles. Myаstheniа grаvis аffects the voluntаry muscles of the body, especiаlly those thаt control the eyes, mouth, throаt аnd limbs.
Your question is incomplete, but most probably your full question was
Case Study: A woman in her mid-30s began to experience drooping eyelids followed by difficulty in swallowing. As the condition progressed she began to feel an overall weakness. Tests indicated that she had an abnormally low number of acetylcholine receptors on her skeletal muscle cells.
Complete each sentence with the correct word or phrase regarding this patient.
thymusthyroidmultiple sclerosismyasthenia gravisacetylcholinesteraseacetylcholine receptorsplasmapheresisFor more information about myаstheniа grаvis refer to the link:
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Please help me, I have a F
Failure to build spindle - anaphase
Failure to dissolve the nuclear membrane - prophase
Failure to condense chromosome - metaphase
What is mitosis?Mitosis is the division of vegetative cells to produce two daughter cells. The process occurs in 4 steps:
Prophase: a stage where the nuclear membrane dissolves and the chromosomes condense to become visible under the microscope.Metaphase: a stage where the condensed chromosomes line up at the center of the cell to form a metaphase plate. each chromosome also gets engaged by the spindle fibers from the opposite ends of the cell. Anaphase: sister chromatids are pulled to opposite poles as a result of the shortening of the spindle fibers.Telophase: sister chromatids complete their migration to the poles. The chromosomes decondense back and the nuclear membrane reappears.Thus:
Failure to build spindle fibers will affect anaphase the most.Failure to dissolve the nuclear membrane will affect prophase the mostfailure to condense chromosomes will affect metaphase the most.More on mitosis can be found here: https://brainly.com/question/26678449
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How do you think glucose could be used to synthesize these molecules?
Answer:
Since you did not provide the specific molecules, here are some ways that glucose is used for synthesis:
Protein molecules - Glucose regulates protein synthesis through AMPK (Activated Protein Kinase) pathways. AMPK is activated by cellular energy via changes in AMP levels resulting from energy.
Gluconeogenesis Pathway - The process where glucose is synthesized using pyruvate and lactate precursors from non-carbohydrate metabolites, amino acids, and glycerol (derived mainly from metabolized fat).
Fatty Acids - Metabolized into pyruvate using glycolysis in the cytoplasm, oxidized pyruvate generates ATP in the mitochondria. During the fed state the glycolytic products synthesize fatty acids through lipogenesis.
Amino Acids & Lipids - Through photosynthesis in plants, glucose joins with nitrates in the soil to create amino acids. The amino acids combine during protein synthesis and glucose is converted to lipids within the plant seeds.
Explanation:
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what carbon source(s) can yeast cells metabolize under anaerobic conditions to make atp? glucose lactic acid pyruvate either ethanol or lactic acid ethanol
Under anaerobic circumstances, yeast cells may metabolize glucose to produce atp.
Even under aerobic settings, Saccharomyces cerevisiae yeast prefers glucose as a carbon source, and ferment is the main mechanism for energy generation. Anaerobic processes in yeast produce alcohol, whereas they produce lactic acid in your muscles. An anaerobic process called fermentation allows glucose to release energy even in the absence of oxygen. In addition to yeast cells, bacteria and animal muscle cells also undergo some sort of fermentation. When exposed to osmotic stress and ethanol as a carbon source, yeast cells accumulate dihydrate rather than glycerol. Two distinct wild type cultures, W303-1A and BY4741, were cultivated in shake-flasks throughout time to observe internal glycerol and trehalose buildup.
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the earliest evidence of hominins in south africa was described by . a. mary leakey b. raymond dart c. charles darwin d. owen lovejoy
The earliest evidence of hominins in south africa was described by (b) Raymond Dart. So option (b) is the correct answer.
Hominins - the group consisting of modern humans, extinct humans, and our immediate ancestors (including members of the genera Homo, Australopithecus, Paranthropus, and Ardipithecus).
Some traits that distinguish hominins from other living and extinct primates are behavioral traits such as upright posture, bipedal locomotion, large brains, specialized tool use and, in some cases, verbal communication. It's a feature.
The hominin own circle of relatives tree has deep roots in Africa. The oldest fossil of the genus Homo ever discovered is a 2.8 million-year-old jaw fragment of his found in East Africa. Our species, Homo sapiens, first appeared fairly high in trees and branched out at least 260,000 years ago.
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if a rna virus with radioactive sulfur was allowed to infect non-radioactive bacteria and replicate. then the cells were centrifuged to separate the virus from bacteria. which fraction will contain the highest radioactivity?
If a RNA virus with radioactive sulfur was allowed to infect non-radioactive bacteria and replicate then in the centrifugation process, the highest radioactivity would be found in the protein coat of the virus which is present in the supernatant.
RNA is the abbreviation for Ribonucleic acid. It is the unstable type of nucleic acid generally present in some viruses and bacteria. There are three main forms of RNA: m-RNA, r-RNA and t-RNA.
Radioactivity is the presence of some radioactive element in any biological molecule that emits radiation spontaneously. Since DNA does not contain any sulfur, therefore the virus can contain radioactivity only in the protein coat. Sulfur is an essential part of cell membranes.
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