On the Ribosome, the MRNA is Read from

Question

On the ribosome, the mRNA is read from ..., and the polypeptide chain is synthesized from...
A) 5' to 3'; C- to N-terminus.
B) 5' to 3'; N- to C-terminus.
C) 3' to 5'; C- to N-terminus.
D) 3' to 5'; N- to C-terminus.

Accepted Answer

During translation elongation, the ribosome translocates on the mRNA from the 5′ end to the 3′ end in consecutive sets of three nucleotides. The polypeptide is concomitantly elongated at its C-terminus by addition of individual amino acids.