Question

Which of the following enzymes is associated with "transcription factories" in the nucleus?

1) RNA polymerase II
2) RNA polymerase I
3) DNA polymerase III
4) transcriptomes
5) reverse transcriptase

Answer 1

RNA polymerase II is linked to 'transcription factories' in the nucleus, as it transcribes all protein-coding genes and is essential in the initiation of transcription.

Step-by-step explanation:

The enzyme associated with “transcription factories” in the nucleus is RNA polymerase II. This enzyme is responsible for transcribing all of the protein-coding genes.

During the initiation of transcription, RNA polymerase II, along with several transcription factors, binds to complex promoter sequences to begin the synthesis of mRNA in the 5' to 3' direction.

The FACT complex also plays a role in assisting the transcription process by repositioning nucleosomes as the RNA polymerase II moves along the DNA template.