Q. No.Which of the following helps in termination of transcription?
(1) Sigma factor
(2) Translocase
(3) Ubiquitin
(4) Rho factor
Which of the following acts as a ribozyme for peptide bond formation in bacteria?
(1) 5s rRNA
(2) 23s rRNA
(3) 16s rRNA
(4) 5.1s rRNA
What is added to the 5’ end of hnRNA in Eukryotes?
1. Poly A tail
2. Methyl cytosine triphosphate
3. Methyl guanosine triphosphate
4. Poly U tail
In eukaryotes the sequences that appear in mature or processed mRNA are called:
(1) Introns
(2) Cistrons
(3) Exons
(4) Mutons
(1) Introns
(2) Cistrons
(3) Exons
(4) Mutons
Some amino acids are coded by more than one codon. Hence genetic code is:
(1) Unambiguous
(2) Non specific
(3) Degenerate
(4) Universal
In actual structure, tRNA is a compact molecule which looks like a/an:
(1) Clover leaf
(2) Rail road
(3) Inverted L
(4) Alpha helix
Which of the following anticodons will hybridize with the mRNA codon 5’ – AUG – 3’?
1. 5’ – UAC – 3’
2. 5’ – TAC – 3’
3. 3’ – UAC – 5’
4. 3’ – TAC – 5’
What facilitates the opening of the helix during elongation step of transcription?
(1) RNA polymerase
(2) Helicase
(3) Topoisomerase
(4) Gyrase
© 2025 GoodEd Technologies Pvt. Ltd.