Question

which step of translation involves aminoacyl-trnas binding to the ribosome? elongation synthesis termination

Explanation:

In translation, the elongation step involves aminoacyl - tRNAs (tRNAs carrying amino acids) binding to the ribosome's A site, then peptide bond formation and translocation occur. Synthesis is a general term, not a specific translation step. Termination is when the ribosome releases the polypeptide, not about aminoacyl - tRNA binding. So the correct step is elongation.

Answer:

elongation