During the elongation cycle of translation,the A site on a ribosome functions in
A) receiving a new tRNA with the correct amino acid.
B) holding a polypeptide as amino acids are added.
C) attaching the small subunits of rRNA to the large subunit.
D) releasing the completed polypeptide.
E) processing the rRNA.

Question

Quizplus · Accepted Answer

During elongation, the A site on the ribosome functions in receiving a new tRNA with the correct amino acid. This tRNA then forms a base pair with the mRNA codon in the A site, allowing for the addition of the correct amino acid to the growing polypeptide chain.

During the Elongation Cycle of Translation,the a Site on a Ribosome