What conclusion is most consistent with the results of the radioactive labeling experiment?
a) the host cell cannot translate viral protein with the amino acid analogues.
b) host cell ribosomes only translate the viral code into short polypeptides.
c) the rna is only translated into a single long polypeptide, which is then cleaved into shorter ones.
d) the rna is translated into short polypeptides, which are subsequently assembled into large ones.
e) the large radioactive polypeptides are coded by the host, whereas the short ones are coded for by the virus.

The correct answer is C.

Explanation:

Incomplete question, here is the full question:

Poliovirus is a positive-sense RNA virus of the picornavirus group. At its 5' end, the RNA genome has a viral protein (VPg) instead of a 5' cap. This is followed by a nontranslated leader sequence, and then a single long protein coding region (~7,000 nucleotides), followed by a poly-A tail. Observations were made that used radioactive amino acid analogues. Short period use of the radioactive amino acids result in labeling of only very long proteins, while longer periods of labeling result in several different short polypeptides.

What conclusion is most consistent with the results of the radioactive labeling experiment?

A) The host cell cannot translate viral protein with the amino acid analogues.

B) Host cell ribosomes only translate the viral code into short polypeptides.

C) The RNA is only translated into a single long polypeptide, which is then cleaved into shorter ones.

D) The RNA is translated into short polypeptides, which are subsequently assembled into large ones.

E) The large radioactive polypeptides are coded by the host, whereas the short ones are coded for by the virus.

As the passage says that the virus has a viral proteion instead of a 5' cap at the end of it's RNA genome and when the researchers used radioactive amino acid analogues to track the RNA, short periods of time resulted in long proteins and when allowed longer periods the results were shorter several polypeptides which make up proteins by coming together.

This indicates that the RNA is cut to smaller polypeptides after taking the form of a long and single polypeptide.

So the answer is C.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.