List the three different ways that mRNA splicing can give rise to different mRNA transcripts.

Expert Solution

Ans :-) Splicing is thd the process in which introns (non coding regions) are removed and exons (coding region) are joined together to form mRNA.

Alternative splicing is the process which allows the production of variety of different proteins from one gene only. In this process, exons may be included within or excluded from the final processed mRNA produced from that gene. The basic methods for alternative splicing are :-

(i) Exon skipping :- an exon may be spliced out of primary transcript or retained.

(ii) mutually exclusive exon :- one of two exon is retained in mRNA but not both.

(iii) intron retention :- an intron may be spliced out or retained. It is different from exon skipping because retained sequence is not flanked by introns. The intron may be coding sequence then it must encode amino acid in continuation with neighbouring exon.

These are some basic method of alternative rna splicing.

gladiator answered 2 years ago

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