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Melissa Moore (U. Mass/HHMI) Part 1: Split Genes and RNA Splicing
Автор: Science Communication Lab
Загружено: 2011-12-05
Просмотров: 37790
Описание:
https://www.ibiology.org/genetics-and...
In the first part of her talk, Dr. Moore explains that eukaryotic pre-mRNA contains long stretches of non-protein coding sequences interspersed with protein coding regions. By recognizing specific sequences, cellular machinery splices out the non-coding introns leaving just the protein-coding exons in mRNA. Although at first glance this may seem like a wasteful process, it is splicing that facilitates the evolution of new genes, and alternative splicing that allows a limited number of genes to produce a large number of proteins.
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