A) the smaller ribosomal subunit
B) the larger ribosomal subunit
C) the whole ribosome
D) No such specificity exists
Correct Answer: A
Solution :
[a] To initiate translation, the mRNA first binds to the smaller ribosomal subunit. Ribosome consists of structural RNAs and about 80 different proteins. In its inactive state, it exist as two subunits, a large subunit and a small subunit. When the smaller subunit encounters the mRNA, the process of translation of the mRNA to protein begins with the binding of the mRNA to the smaller ribosome unit.
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