Question

what happens during translation?
a. amino acids carried by trna are used by rrna to build a polypeptide chain.
b. amino acids carried by rrna are used by trna to build a polypeptide chain.
c. rrna unwinds a section of dna. the dna is used as a gene.
d. rna polymerase unwinds a section of dna to allow rna polymerase to copy a template to build a strand of mrna.

Explanation:

Translation is the process in protein synthesis where amino acids carried by tRNA (transfer RNA) are used by rRNA (ribosomal RNA) in the ribosome to build a polypeptide chain. Option B is incorrect as rRNA does not carry amino acids. Option C is about DNA unwinding which is related to replication or transcription (not translation). Option D is about RNA polymerase which is involved in transcription (making mRNA from DNA template), not translation.

Answer:

A. Amino acids carried by tRNA are used by rRNA to build a polypeptide chain.