Place the following steps in the initiation phase in a prokaryote in their proper order.
A.mRNA binds to the complex.
B.GTP is hydrolyzed.
C.IF1,IF2,and IF3 bind the 30S subunit.
A) C; B; A
B) C; A; B
C) A; B; C
D) B; C; A

Question

Place the following steps in the initiation phase in a prokaryote in their proper order. 
A.mRNA binds to the complex.
B.GTP is hydrolyzed.
C.IF1,IF2,and IF3 bind the 30S subunit.
A) C; B; A
B) C; A; B
C) A; B; C
D) B; C; A

Quizplus · Accepted Answer

In prokaryotic initiation, IF1, IF2, and IF3 bind to the 30S subunit first (C), followed by binding of mRNA to the complex (A), and then the hydrolysis of GTP by IF2 (B). Hence, the proper order is C-A-B, which is only found in option B.

Place the Following Steps in the Initiation Phase in a Prokaryote