A cell has a defect in polyadenylation of mRNA. The RNA transcripts encoding which type of protein would NOT be affected by this defect because they are not polyadenylated?
A) SR proteins
B) histone proteins
C) DNA binding proteins
D) transcription factors
E) transmembrane proteins

Question

Quizplus · Accepted Answer

Histone mRNAs are not polyadenylated, unlike most eukaryotic mRNAs. This is because histone mRNAs have a unique mechanism of regulation and processing that does not involve poly(A) tails.

A Cell Has a Defect in Polyadenylation of MRNA