Which enzyme is responsible for adding the poly(A)tail to mRNA?
A) cleavage stimulatory factor (CStF)
B) poly(A) polymerase
C) cleavage and polyadenylation specificity factor (CPSF)
D) poly(A) binding protein

Question

Quizplus · Accepted Answer

Poly(A) polymerase is responsible for adding the poly(A) tail to mRNA. Cleavage stimulatory factor (CStF), cleavage and polyadenylation specificity factor (CPSF), and poly(A) binding protein are all involved in the process but do not directly add the poly(A) tail.

Which Enzyme Is Responsible for Adding the Poly(A)tail to MRNA