Question

The activities happening during RNA editing are:
(A). A change in RNA base sequence after transcription
(B). Usual addition or occasional deletion of 'U' residues
(C). Occasional addition of 'C' residues
(D). Proceeding with the editing in the 5'-3' direction of mRNA
Choose the correct answer from the options given below:

• A. (A), (B) and (C) only.
• B. (A), (B) and (D) only.
• C. (A), (C) and (D) only.
• D. (B), (C) and (D) only.

Hint:

Remember that guide RNA-mediated RNA editing (such as U-insertion in trypanosomes) proceeds from the 3' end to the 5' end of the mRNA, not in the standard 5' to 3' direction.

Answer 1

The Correct Option is A