Question

RNA determines the sequence of amino acids in proteins and polypeptides by a two-step process: transcription of DNA produces mRNA in the nucleus, then translation of the mRNA to tRNA takes place at the ribosome in the cytoplasm

A. True
B. False

Answer 1

The statement provided is false; tRNA does not translate mRNA, it brings amino acids to the ribosome where mRNA is translated into a protein with the help of ribosomal RNA (rRNA).

Step-by-step explanation:

The statement given is false. Transcription indeed occurs within the nucleus to produce messenger RNA (mRNA), which is then modified and sent into the cytoplasm for translation. However, translation involves mRNA being decoded into a protein with not only tRNA's involvement but also rRNA within the ribosome.

The ribosome plays a crucial role by facilitating the bonding process between the amino acids to produce a polypeptide chain, which can further be processed into a functional protein. It's worth noting that tRNA does not translate mRNA, but rather, it transfers the correct amino acids to the ribosome in accordance with the mRNA sequence.