hnRNA undergoes two additional process. Out of them in one process an unusual nucleotide (methyl GPT) is added to the 5 ' end of molecule. What would you called this?

Step-by-step solution

The process of addition of methyl GPT at the 5^ end of hnRNA is known as capping. Enzyme guanly transferase catalyses this process. Cap is essential for the formation of mRNA-Ribosome complex. Translation is not possible if cap is lacking, because cap is identified by 18 SrRNA of ribosome unity.