MCQ Bank
Which RNA polymerase is found only in plants and transcribes small interfering RNAs?
- A) RNA Pol II
- B) RNA Pol I
- C) Pol IV and Pol V
- D) RNA Pol III
During the process of translation, ___ number of ribosomes attach to one mRNA.
- A) One
- B) Several
- C) Two
- D) Three
Each tRNA is always specific to each _______________.
- A) Ribosomes
- B) Gene
- C) Amino acid
- D) Nucleotide
Dihydrouridine is derived from uridine by enzymatic reduction of the double bond between carbon ___ and ___.
- A) 6 and 4
- B) 5 and 6
- C) 3 and 6
- D) 3 and 4
______ is present at 5 prime ends of mRNA (upstream) in the process of prokaryotic translation.
- A) ribosome binding site
- B) RNA binding site
- C) peptide binding site
- D) origin of replication
AUG is a ____ codon.
- A) replicating
- B) terminator
- C) start
- D) stop
Kozak sequence increases the efficiency of ________.
- A) Transcription
- B) Replication
- C) Metabolism
- D) Translation
Adenylation and tRNA charging is done by ____.
- A) aminoacyl-tRNA
- B) Reductase
- C) Hydrolase
- D) Polymerase
Which one is not an unusual base found in tRNA?
- A) Thymine
- B) Hypoxanthine
- C) Methylguanine
- D) Cytidine
3 prime tail and 5 prime cap in mRNA is good because it protects RNA from rapid _____ .
- A) Degradation
- B) Methylation
- C) Acetylation
- D) Metabolism
The process of translation is completely dependent on ______.
- A) Nucleotides
- B) Primer
- C) Codons
- D) Polymerase
RBS, ribosome binding site, is complementary to ____.
- A) 40s RNA
- B) 30S RNA
- C) 16S RNA
- D) 60s RNA
Each ORF, origin of replication, is specific for _____.
- A) one protein
- B) one transcript
- C) many transcripts
- D) many proteins
The RNA which takes message from DNA to ribosomes is called ____.
- A) rRNA
- B) siRNA
- C) tRNA
- D) mRNA
tRNA synthetases class 1 are ______.
- A) Monomeric
- B) Trimeric
- C) Tetrameric
- D) Dimeric