Answer :
Prior to process 1, DNA should copy itself to allow the cell to divide
After process 2, the completed protein should travel back to the nucleus
Between processes 1 and 2, the mRNA must be modified before leaving the
nucleus
During process 2, the ribosome should remove any mutated nucleotides
from the mRNA
Answer:
The correct answer is: Between processes 1 and 2, the mRNA must be modified before leaving the nucleus
Explanation:
Protein synthesis begins with the process of transcription, which takes place in the nucleus. Here, DNA is copied into mRNA. Next, the mRNA is processed or modified and then exported to cytoplasm and where the process of translation takes place. This modification of mRNA is important as it transforms into a mature mRNA. The three main modifications that a mRNA, in the nucleus, undergoes are:
- 5' capping
- 3' polyadenylation
- RNA splicing