12. When a messenger RNA molecule arrives at the ribosome, (A) it binds to the A

Question

12. When a messenger RNA molecule arrives at the ribosome, (A) it binds to the A-site (B) it binds to the P-site (C) it binds to the 16S RNA in the small subunit (D) it binds to the 23S RNA in the large subunit (E) it binds to the 5S RNA in the large subunit 13. In prokaryotes, rho-independent terminators are characterized by RNAs that have an structure followed by a (A) inverted repeat, poly(T) tract (B) inverted repeat, poly(G) tract (C) inverted repeat, poly(U) tract (D) direct repeat, poly(C) tract(E) direct repeat, poly(A) tract

Explanation / Answer

12)-option c is correct because smaller subunit of ribosome is bind to larger subunit and mRNA.

13)-option c is correct because these are characterized by RNA structure having G+C rich stem loop and a series of uridine residues.

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