Question

1. Griffith worked on .............

a. Bacteriophage b. Drosophila

c. Frog eggs c. Streptococci

2. The molecular knives of DNA are

…………..

a. Ligases b. Polymerases

c. Endonucleases d. Transcriptase

3. Translation occurs in the ...............

a. Nucleus b. Cytoplasm

c. Nucleolus d. Lysosomes

4. The enzyme required for transcription is

..................

a. DNA polymerase

b. RNA polymerase

c. Restriction enzyme

d. RNAase

5. Transcription is the transfer of genetic

information from ..............

a. DNA to RNA

b. tRNA to mRNA

c. DNA to mRNA

d. mRNA to tRNA

6. Which of the following is NOT part of

protein synthesis?

a. Replication b. Translation

c. Transcription d. All of these

7. In the RNA molecule, which nitrogen

base is found in place of thymine?

a. Guanine b. Cytosine

c. Thymine d. Uracil

8. How many codons are needed to specify

three amino acid?

a. 3 b. 6

c. 9 d. 12

9. Which out of the following is NOT an

example of inducible operon?

a. Lactose operon

b. Histidine operon

c. Arabinose operon

d. Tryptophan operon

10. Place the following event of translation

in the correct sequence

i. Binding of met-tRNA to the start

codon.

ii. Covalent bonding between two

amino acids.

iii. Binding of second tRNA.

iv. Joining of small and large ribosome

subunits.

A. iii, iv, i, ii B. i, iv, iii, ii

C. iv, iii, ii, i D. ii, iii, iv, i​

Answer 1

Answer:

1. frog eggs

2.ploymerasas

3.nucleolus

4.DNA polymerase

5.DNA to MRNA

6.translation

7.thymine

8.9 codons

9.lactose operon

10.Binding of second tRNA

Explanation:

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