During Initiation of Translation

Multiple Choice

During initiation of translation:

A) the initiator tRNAmet binds to the A site of a ribosome.
B) specific rRNA base pairs with a sequence in mRNA to position a ribosome at the start codon.
C) IF-3 must be recruited to the 30S ribosome in order for the 70S initiation complex to assemble.
D) there is no energy expenditure as the tRNA binding to mRNA is via complementary base pairing.
E) both 70S and 30S ribosome subunits must simultaneously recognize an mRNA to bind.