What factor(s) is (are) necessary for the correct placement of the mRNA and initiating tRNA on the ribosome?
A) IF1
B) IF2
C) IF3
D) A and B
E) A, B, and C

Question

Quizplus · Accepted Answer

IF1, IF2, and IF3 are all initiation factors necessary for the correct placement of the mRNA and initiating tRNA on the ribosome. IF1 and IF3 assist in the assembly of the initiation complex on the small ribosomal subunit, while IF2, in its GTP-bound form, helps in the binding of the initiator tRNA to the small ribosomal subunit.

What Factor(s) Is (Are) Necessary for the Correct Placement of the MRNA