Question

4. Why must transcription occur in the nucleus?

Answer 1

Because that’s where DNA is found in animal cells and mRNA needs to copy a part of DNA which is the primary transcript then the primary transcript goes through RNA splicing to get rid of the introns as they are non-coding regions of DNA and then splices the exons together to form a mature transcript which can then be translated in the translation stage

Answer 2

it very much has to.

Step-by-step explanation:

without it we wouldn't have our genes transcribed or read