Q. Under which of the following conditions there will be no change in the reading frame of following mRNA? 5’ AACAGCGGUGCUAUU 3’
A) Deletion of GGU from 7th, 8th and 9th positions
B) Insertion of G at 5th position
C) Deletion of G from 5th position
D) Insertion of A and G at 4th and 5th position respectively
Explanation
Insertion or deletion of three or its multiple bases insert or delete in one or multiple codon hence one or multiple amino acids, and reading frame remains unaltered from that point onwards.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.