A Molecule of ________ Contains All the Codons Needed to Produce

Question

A molecule of ________ contains all the codons needed to produce a particular polypeptide.
A) rRNA
B) mRNA
C) dRNA
D) tRNA
E) cRNA

Accepted Answer

mRNA (messenger RNA) carries the genetic instructions from DNA in the nucleus to the ribosome for protein synthesis. It contains codons, which are sequences of three nucleotides that code for specific amino acids. Therefore, a molecule of mRNA contains all the codons needed to produce a particular polypeptide.