Answer:
a. P
b. A
c. E
d. P
Step-by-step explanation:
Hello,
Based on the answers and the attached picture describing such process:
A. The P site holds the tRNA carrying the growing polypeptide chain.
B. That is A site and it called aminoacyl-tRNA since it binds to the charged aminoacyl peptide.
C. E site is the exiting site, therefore it turns out being the final stage on the uncharged molecule.
D. At the P site, the peptidyl-tRNA is bind to promote the peptide synthesis.
Best regards.