Transpiration MCQ Questions and Answers:
1. Transcription is the transfer of genetic information from..............
(1) DNA to RNA
(2) tRNA to mRNA
(3) DNA to mRNA
(4) d. mRNA to tRNA
Answer: 1
2. The enzyme required for transcription is________
(1) RNAase
(2) DNA polymerase
(3) RNA polymerase
(4) Restriction enzymes
Answer: 3
3. Mark the one, which is NOT the transcription inhibitor in eukaryotes.
(1) Rifampicin
(2) Acridine dye
(3) Actinomycin D
(4) Rho factor
Answer: 4
4. Transcription is the transfer of genetic information from________
(1) DNA to RNA
(2) DNA to mRNA
(3) mRNA to tRNA
(4) tRNA to mRNA
Answer: 2
5. Which of the following is not required for the transcription of genetic information
(1) Helicase
(2) ATP
(3) template chain
(4) amino acid
Answer: 4
6. Which of these subunits of RNA polymerase is totally required to initiate transcription?
(1) alpha (α)
(2) sigma (σ)
(3) omega (ω)
(4) beta (β)
Answer: 2
7. Name the one intrinsic terminator of transcription.
(1) Intercalating agents
(2) Rho independent
(3) Rho dependent
(4) Acridine orange
Answer: 2
8. Transcribe mRNA with the complementary strand of "-CAATTC-", then the sequence of this mRNA is______
(1) -GAAUUG-
(2) -CTTAAC-
(3) -CUUAAC-
(4) -GAATTG-
Answer: A
9. What is the work of the sigma factor in transcription?
(1) Helicase action
(2) Transcription initiation
(3) Transcription elongation
(4) Transcription termination
Answer: 2
10. Which of the following transcription termination technique has RNA dependent ATPase activity?
(1) Intercalating agents
(2) Rho dependent
(3) Rho independent
(4) Rifampcin
Answer: 2
11. To simulate the transcription process in the organism, the necessary conditions are______
① RNA polymerase
② DNA polymerase
③ free ribonucleotides
④ free deoxynucleotides
⑤ DNA molecules
⑥ ATP
⑦ suitable temperature
⑧ suitable pH
(1) ①②④⑤⑦⑧
(2) ①④⑤⑥⑦⑧
(3) ①②③⑤⑦⑧
(4) ①③⑤⑥⑦⑧
Answer: 4
12. From the perspective of the transmission process of genetic information, the main function of messenger RNA (mRNA) can be expressed as
(1) Transfer genetic information from DNA to proteins
(2) The genetic information of translated DNA
(3) The genetic information of transcribed DNA
(4) as a template for RNA synthesis
Answer: 1
13. Which statement about transfer RNA is true
(1) An amino acid can be carried by one or more transfer RNAs
(2) Transfer RNA is synthesized in the cytoplasm
(3) A transfer RNA has only three bases
(4) Each amino acid has its own specific type of transfer RNA
Answer: 1
14. DNA replication and transcription have in common______
(1) Requires multiple enzymes to participate
(2) Occurs in the nucleus.
(3) Follow the principle of complementary base pairing
(4) All of these
Answer: 4
15. False statement about the two processes of DNA replication and transcription in eukaryotic cells_______
(1) Both processes can occur in the nucleus
(2) Enzymes are involved in both processes
(3) Both processes use deoxyribonucleotides as raw materials
(4) Both processes use DNA as a template
Answer: 3
16. Which of the following statements about the role of the "RNA polymerase binding site" in the gene structure is false______
(1) The "RNA polymerase binding site" is the start codon
(2) An "RNA polymerase binding site" is a binding site to which RNA polymerase binds when RNA is transcribed
(3) The "RNA polymerase binding site" enables the enzyme to accurately recognize the initiation site of transcription and initiate transcription
(4) "RNA polymerase binding site" regulates mRNA transcription
Answer: 1