nucleic acids | Multiple Choice Questions (MCQ) Choose Part Part A

Q1 - Template-directed DNA synthesis occurs inall the following except?
A. The replication fork
B. Polymerase chain reaction
C. Growth of RNA tumor viruses
D. Expression of oncogenes
Answer - C
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Q2 - Ribosomes similar to those of bacteriafound in?
A. Plant nuclei
B. Cardiac muscle cytoplasm
C. Liver endoplasmic reticulum
D. Neuronal cytoplasm
Answer - A
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Q3 - Using written convention which one of thefollowing sequences is complimentary toTGGCAGCCT?
A. ACCGTCGGA
B. ACCGUCGGA
C. AGGCTGCCA
D. TGGCTCGGA
Answer - A
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Q4 - Which one of the following binds tospecific nucleotide sequences that areupstream and most distant from the startsite?
A. RNA polymerase
B. Repressor
C. Inducer
D. Restriction
Answer - A
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Q5 - In the biosynthesis of c-DNA, the joiningenzyme ligase requires?
A. GTP
B. ATP
C. CTP
D. UTP
Answer - B
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Q6 - The ‘rho’ (ρ) factor is involved?
A. To increase the rate of RNA synthesis
B. In binding catabolite repressor to the promoterregion
C. In proper termination of transcription
D. To allow proper initiation of transcriptide
Answer - C
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Q7 - Elongation of a peptide chain involves allthe following except?
A. mRNA
B. GTP
C. Formyl-Met-tRNA
D. Tu, TS and G factors
Answer - C
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Q8 - Translation results in the formation of?
A. mRNA
B. tRNA
C. rRNA
D. A protein molecule
Answer - D
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Q9 - How many high-energy phosphate bondequivalents are required for amino acidactivation in protein synthesis?
A. One
B. Two
C. Three
D. Four
Answer - B
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Q10 - Amanitin the mushroom poison inhibits?
A. Glycoprotein synthesis
B. ATP synthesis
C. DNA synthesis
D. mRNA synthesis
Answer - D
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