1. The process involved in the RNA formation on the DNA template is
8. RNA polymerase (Ochoa 1953) has polypeptide chains
a) Transcription2. The enzyme required for transcription is
b) Translation
c) Replication
d) Transformation
a) Restriction enzymes3. Transcription is the transfer of genetic information from
b) DNA polymerase
c) RNA polymerase
d) RNAase
a) DNA to RNA4. RNA required for the protein synthesis
b) tRNA to mRNA
c) DNA to mRNA
d) mRNA to tRNA
a) mRNA5. A promoter site on DNA
b) tRNA
c) rRNA
d) All of these
a) Initiates transcription6. Sigma factor is component of
b) Regulates termination
c) Codes for RNA
d) Transcribes repressor
a) DNA ligase7. What is the main function of tRNA in relation to protein synthesis?
b) DNA polymerase
c) RNA polymerase
d) endonuclease
a) Inhibits protein synthesis
b) Proof reading
c) Identifies amino acids and transport them to ribosomes
d) all of these
8. RNA polymerase (Ochoa 1953) has polypeptide chains
a) 29. Which site of tRNA molecule hydrogen bonds to a mRNA molecule?
b) 3
c) 4
d) 5
a) Codon10. The DNA chain acting as a template for RNA synthesis has the following order of bases, AGCTTCGA. What will be the order of bases in mRNA?
b) Anticodon
c) 5’ends of the tRNA molecule
d) 3’ends of the tRNA molecule
a) TCGAAGCT
b) UGCUAGCT
c) TCGAUCGU
d) UCGAAGCU
11. Choose the statement which is correct about gene transcription
a) The transcript is identical to the coding strand and complementary to the template
strand
b) The transcript is identical to the template strand and complementary to the coding strand
c) The transcript is identical to both the coding and template strands
d) None of the above
Answers
1. a) Transcription
2. c) RNA polymerase
3. c) DNA to mRNA
4. d) All of these
5. a) Initiates transcription
6. c) RNA polymerase
7. c) Identifies amino acids and transport them to ribosomes
8. d) 5
9. b) Anticodon
10. d) UCGAAGCU
11. a) The transcript is identical to the coding strand and complementary to the template strand