Question

How is hnrna produced ?

Answer 1

Pre-mRNA is synthesized from a DNA template in the cell nucleus by transcription. Pre-mRNAcomprises the bulk of heterogeneous nuclear RNA (hnRNA). ... Transcriptionproduces primary transcripts that are further modified by several processes.
plz mark as brainliest answere

Answer 2

${\huge{\blue{\boxed{\boxed{\pink{\underline{\underline{\mathfrak{\red{\ ♡ANSWER ♡ }}}}}}}}}}$

The precursor of mRNA transcribed by RNA polymerase-|| it is called heterogeneous nuclear RNA .It undergoes following processing to form nascent mRNA :-

1)Splicing:- In this process the non-coding introns are removed and coding sequences call exons are joined in a definite order .This is required because primary transcript contains both introns and exons .

2)Capping:- In this process an unusual nucleotide is added to the 5' end of hnRNA.

3)Tailing:- In this process 200 to 300 adenylated residues are added at the 3' endof hn RNA .

4)The fully process mRNA is released from the nucleus into the cytoplasm for translation .

❤❤HOPE IT HELPS YOU ❤❤