Question

Explain how does the hnRNA becomes the mRNA. OR

Class XII
Molecular basis of inheritance

Answer 1

when the hnRNA collectes information from organelles it become mRNA.

Answer 2

Answer:

The hnRNA undergoes the following processes to form mRNA:

(i) Capping: Addition of methyl guanosine triphosphate at 5'-end.

(ii) Tailing: Addition of 200-300 adenylate residues at 3'-end.

(iii) Splicing: Removal of introns and joining of exons.

Explanation:

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