OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
stays in the nucleus
|
|
|
is made into mRNA and goes to the cytoplasm
|
|
|
goes directly to the cytoplasm without changes
|
|
|
goes back to the nucleus for changes
|
Detailed explanation-1: -Eukaryotic transcription is carried out in the nucleus of the cell and proceeds in three sequential stages: initiation, elongation, and termination.
Detailed explanation-2: -In bacterial cells, the mRNA can be translated directly as it comes off the DNA template. In eukaryotic cells, RNA synthesis, which occurs in the nucleus, is separated from the protein synthesis machinery, which is in the cytoplasm.
Detailed explanation-3: -Overview of pre-mRNA processing in eukaryotes In the nucleus, a pre-mRNA is produced through transcription of a region of DNA from a linear chromosome. This transcript must undergo processing (splicing and addition of 5’ cap and poly-A tail) while it is still in the nucleus in order to become a mature mRNA.