Question

Which of the following best explains the role of transcription in a cell? group of answer choices

O to produce a mrna molecule to deliver the genetic instructions outside the nucleus.
O to unpackage and unwind dna so that enzymes can access the individual genes.
O to retrieve amino acids and bring them to the ribosome for assembly into a polypeptide.
O to edit the mrna strand and make it ready to leave the nucleus.

Answer 1

The role of transcription is to produce an mRNA molecule that conveys genetic information from DNA to the cytoplasm for protein synthesis. Therefore correct option is A

Step-by-step explanation:

The best explanation for the role of transcription in a cell is to produce a mRNA molecule that carries the genetic instructions from DNA out of the nucleus to the cytoplasm. Transcription begins in the nucleus when the DNA strand unwinds to reveal a gene sequence. RNA polymerase then synthesizes mRNA in a 5' to 3' direction using the DNA as a template. The mRNA strand is further processed within the nucleus before it exits to the cytoplasm. There, the mRNA is used by ribosomes, in a process called translation, to synthesize proteins with the help of tRNA molecules.