Question

Transcription: Describes the production of polypeptides from the mRNA template Occurs in the nucleus Produces single-stranded mRNA using the antisense DNA strand as a template Is regulated by transcription factors that bind to the 3' UTR Precedes 5' capping and polyadenylation.

Answer 1

Answer:

True statements about transcription:

- Occurs in the nucleus  

- Produces single-stranded mRNA using the antisense DNA strand as a template  

- Precedes 5' capping and polyadenylation.

Explanation:

Transcription is the process by which a specific fragment of DNA (e.g., a gene) is used as template to synthesize a complementary RNA sequence, usually a messenger RNA (mRNA) molecule, which is then used to synthesize a protein in the ribosomes by a process called 'translation'. In eukaryotic cells, transcription occurs within the cell nucleus which contains the genetic material of the cell. Transcription factors are proteins that bind to DNA regulatory elements (e.g., promoter sequences) located at the 5′ end of the transcription initiation site and thus stimulate transcription. Both mRNA capping (5' cap) and polyadenylation are post-transcriptional modifications that serve to protect the nascent mRNA from enzymatic degradation and help in ribosome binding during translation.