Question

During the expression of a gene in a eukaryotic organism, a series of events happen one after another. Arrange the following steps of gene expression in eukaryotes chronologically i.e. from the first to the last-
(A). Movement of the matured mRNA from the nucleus to the cytoplasm
(B). Formation of transcript (pre-mRNA) in the nucleus
(C). Removal of the introns, joining the exons, and addition of 5'cap and poly-A tail to the pre-mRNA
(D). Attachment of the mRNA with the Ribosome for translation in the cytoplasm
Choose the correct answer from the options given below:

• A. (B), (C), (A), (D).
• B. (D), (B), (C), (A).
• C. (B), (A), (D), (C).
• D. (C), (B), (D), (A).

Hint:

Remember:
Nucleus = Transcription (B) followed by Processing (C).
Cytoplasm = Nuclear export (A) followed by translation on ribosomes (D).
This spatial division defines the sequence of eukaryotic gene expression.

Answer 1

The Correct Option is A