Question

2.1.2 quiz: protein synthesis
question 4 of 10
how is rrna involved in translation?
a. it carries the genetic code from the nucleus to the cytoplasm.
b. it combines with proteins to form the large and small subunits of a ribosome.
c. it holds an anticodon on one end and the matching amino acid on the other end.
d. it copies genes in dna into mrna.

Explanation:

rRNA (ribosomal RNA) combines with proteins to form ribosomes. Ribosomes are the sites of protein synthesis during translation. Option A describes mRNA (messenger RNA) which carries genetic code. Option C describes tRNA (transfer RNA) with anticodon and amino acid. Option D describes the role of RNA polymerase in transcription (not translation). So, B is correct for rRNA's role in translation.

Answer:

B. It combines with proteins to form the large and small subunits of a ribosome.