Observe the given figure and answer the question.
Identify the correct sequence of events occurring in the process shown in the figure.
(A) Tailing and Splicing
(B) Transport of the molecule out of the nucleus
(C) Transcription of precursor RNA by RNA polymerase II
(D) Capping
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (C), (D), (A), (B)
(C) Transcription of precursor RNA by RNA polymerase II — first. RNA polymerase II makes hnRNA.
(D) Capping — second. Methyl guanosine triphosphate is added at the 5' end.
(A) Tailing and Splicing — third. Introns are removed, exons joined, and a poly-A tail is added at the 3' end.
(B) Transport of the molecule out of the nucleus — last. The fully processed hnRNA, now mRNA, goes to the cytoplasm for translation.