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Nady [450]
3 years ago
5

How did Hershey and Chase ""label"" viral DNA and viral protein so that they could be distinguished? Explain why they chose each

radioactive tag in light of the chemical composition of DNA and protein.
Biology
1 answer:
vlabodo [156]3 years ago
7 0

Answer:

As DNA contain phosphorus in its structure in large amount, therefore, Harshey and Chase labeled DNA with radioactive phosphorus and because protein contains some amino acids which have sulfur so they labeled T2 bacteriophage protein with sulfur.

So after that they infected E.coli bacteria with radioactively labeled phages and after centrifugation, they have found that pellet which contains cells is showing the presence of radioactive phosphorus and supernatant which have T2 phage capsid protein showing the presence of radioactive sulfur.

Therefore by labeling viral protein and viral DNA they found that DNA is the genetic material not protein.

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kipiarov [429]

Answer:

C. Vaccination

Explanation:

vaccination is the administration of a vaccine to help the immune system develop protection from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism.

5 0
3 years ago
What blood vessel is a tributary of the hepatic portal vein?
inysia [295]

According to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.

<h3>What is the hepatic portal vein?</h3>

It is a blood vessel that carries deoxygenated blood from the digestive organs and the spleen to the liver.

The linear vein is one of the branches of the celiac trunk that supplies the spleen and gives off branches to the stomach and pancreas.

Therefore, we can conclude that according to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.

Learn more about the hepatic portal vein here: brainly.com/question/15511202

#SPJ12

7 0
1 year ago
Identify structures of the musculoskeletal system
DaniilM [7]

Answer:

Explanation:The musculoskeletal system provides form, support, stability, and movement to the body. It is made up of the bones of the skeleton, muscles, cartilage, tendons, ligaments, joints, and other connective tissue that supports and binds tissues and organs together.

5 0
3 years ago
Vegetable farmers often plant soybeans every few years. Rotating crops breaks up the life cycles of many insect pests, and the s
Flauer [41]
The chemical food source for the soybean plants is A (Sunlight) because once the leaves emerge, it relies on sunlight to photothynsesize to get energy.
6 0
3 years ago
Read 2 more answers
1. Which best describes the structure of a phospholipid?<br> WA<br> SER<br> .
Nataly_w [17]

Answer:

A phospholipid is consists of a glycerol backbone with a 2 fatty acids (either saturated or unsaturated) attached to it and a phosphate group, hence forming the head of the phospholipid molecule. I have attached a photo below for your reference.

5 0
3 years ago
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