Biochemistry Questions and Answers – DNA-Dependent Synthesis of RNA

This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “DNA-Dependent Synthesis of RNA”.

1. Transcription is catalyzed by ____________
a) DNA-dependent RNA polymerases
b) RNA-dependent DNA polymerases
c) Reverse transcriptases
d) DNA ligases
View Answer

2. Where does RNA polymerase bind DNA?
a) Promoter
b) Operator
c) Enhancer
d) None of the mentioned
View Answer

3. Which of the following is true about RNA synthesis?
a) Synthesis of RNA is always in the 5’ to 3’ direction
b) RNA polymerase requires a primer for initiating transcription
c) U is inserted opposite T in transcription
d) New nucleotides are added on the 2’-OH of the ribose sugar
View Answer

4. What is the role of sigma factor in bacterial RNA polymerase?
a) Catalyzing RNA synthesis
b) Positioning RNA polymerase correctly on the DNA template
c) Terminating RNA synthesis
d) Unwinding DNA template
View Answer

5. TBP stands for?
a) TATA box polymerase
b) TATA-box binding protein
c) Transcription associated factor
d) Transcription factor binding protein
View Answer

6. Actinomycin D is an inhibitor of ____________
a) Transcription
b) Translation
c) Replication
d) None of the mentioned
View Answer

7. Number of hydrogen bonds that form between U and A in a Watson-Crick base pair interactions?
a) 0
b) 1
c) 2
d) 3
View Answer

8. Repressors bind to ____________
a) Promoter
b) Enhancer
c) Operator
d) Hormone response element
View Answer

9. RNA primer is removed from the Okazaki fragment by ____________
a) DNA polymerase I
b) DNA polymerase II
c) DNA polymerase III
d) RNA polymerase
View Answer

10. Binding of the prokaryotic DNA dependent RNA polymerase to promoter site is inhibited by ____________
a) Rifampicin
b) Tetracycline
c) Puromycin
d) Streptomycin
View Answer

Sanfoundry Global Education & Learning Series – Biochemistry.

To practice all areas of Biochemistry, here is complete set of 1000+ Multiple Choice Questions and Answers.