NEET : Multiple Choice questions: Hershey and Chase Experiment

1. The ultimately proof that DNA is genetic material came from the experiment of 

A. Fredrick Griffith 

B. Wilkins and Franklin 

C. Hershey and Chase 

D.Meselson and stahl

Answer: C Explanation 

2. Hershey and Chase conducted their experiment on bacteriophage which is 

A. Virus that infect  bacteria 

B.Bacteria that infection virus 

C. Bacteria that infect fungi

D. Virus that infect  fungi 

Answer: A Explanation 

3. Hershey and Chase used  which of the two radioactive isotopes in two different culture mediums  to grow bacteriophage.

A. 14N and 15N

B. 12C and. 13C

C. 35S and 32P 

D. 14O and 16O

Answer: C Explanation

4. Consider the following statement and select the correct code:

1. Bacteriophages that was cultured or grew in this medium containing radioactive sulphur, developed DNA with radioactive sulphur .

2. Bacteriophages that was cultured or grew in this medium containing radioactive phosphorus, developed protein coat with radioactive phosphorus.

A. Only 1

B. Only 2

C. Both 1 and 2

D. Neither 1 nor 2

Answer: D Explanation

5. Which of the following statement is correct regarding the experiment of Hershey and Chase.

A. During culture, bacteriophage has 32P in their protein coat.

B. They used single   medium to grow or culture the bacteriophage. 

C. During culture, bacteriophage has 35S in their  protein coat.

D. They found bacteriophage insert it's DNA into E.coli after infection.

Answer: D Explanation

6. What are three steps in sequential order used by the Hershey and Chase.

A. Agitation - Centrifugation - infection

B. Centrifugation - Agitation - infection 

C. Infection - Centrifugation - Agitation 

D. Infection - agitation - Centrifugation

Answer: D Explanation

7. Which of the following statement is incorrect regarding the experiment of Hershey and Chase.

A.They found 35S in supernatant or out side the E. Coli after the infection.

B. They found 32P  inside the cell of E. Coli after the infection

C. After infection, 32P was transferred to body of E. Coli along with DNA of Bacteriophage.

D. After infection, 35S was transferred to body of E. Coli along with protein of Bacteriophage.

Answer: D Explanation

8. After infection, Hershey and Chase  separated bacteriophage from E.Coli through

A. Centrifugation.

B. Chromatography

C. Electrophoresis

D. Distillation

Answer: A Explanation

9. After Experiment, Hershey and Chase concluded except:

A. Protein coat containing 35S was not transferred from bacteriophage to E.Coli

B. DNA with 32P of Bacteriophage was transferred to the body of E.coli and 32P was detected in the body of E.coli.

C. Protein coat with 35S was recovered from E.coli hence protein is genetic matter.

D.DNA with 35P was recovered from E.coli hence protein is genetic matter.

Answer: C Explanation

10. In which of the following year, Hershey and Chase  conducted their experiment.

A. 1952         B. 1956

C. 1958         D. 1959

Answer: A Explanation