Karnataka PGET 2007 Physiology MCQ Answer 04
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Most human genes are discontinuous, with an average of nine exons per gene, although some genes have many more than this. The record is held by the gene for a large muscle protein called titin, which has 178 exons and is also the longest known human gene at 80 780 bp. During gene expression, the initial RNA that is synthesized is a copy of the entire gene, including the introns as well as the exons. The process called splicing removes the introns from this pre-mRNA and joins the exons together to make the mRNA which eventually directs protein synthesis.
Tags: MCQ, Physiology, Gene transcription
Category: Karnataka PGET 2007 MCQs
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