Microbiology - Translation and Regulation

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Exercise :: Translation and Regulation - Section 1

  • Translation and Regulation - Section 1
1. 

Which binding is inhibited by pactamycin?

A. Aminoacyl-tRNA to the A-site of 30S subunit
B. Initiator-tRNA to 30S/40S initiation complexes
C. Peptidyl t-RNA to the 50S subunit
D. Formation of peptide bond in P site

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

2. 

Which of the following act as the blueprint or template for the process of protein synthesis that takes place on ribosomes?

A. rRNA
B. DNA
C. tRNA
D. mRNA

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

3. 

Negative regulation of protein synthesis is accomplished by

A. allosteric inhibition
B. the binding of RNA polymerase to the promoter
C. the binding of a repressor to the DNA
D. the binding of a repressor to the RNA polymerase

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

4. 

Site in the ribosome from which the tRNA donates amino acids to the growing polypeptide chain is

A. P site
B. O site
C. T site
D. A site

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

5. 

When was the genetic code completed?

A. 1958
B. 1952
C. 1966
D. 1968

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.