Gene duplication plays an impoant role in the evolution of
Correct Answer: mRNA
Description: Analysis of the human genome suggests novel genes created by retroposition may play an impoant role in primate evolution. However, data from non-human primates is still scarce. A comprehensive comparison was thus performed among four primate genomes (human, chimpanzee, orangutan, and macaque), which detects elevated rates of retroposition in both the common ancestor of hominoids and macaques. Fuher analysis shows approximately 10% of intact retrocopies may be under positive selection and at least 4% of retrocopies become functional copies eventually. Moreover, human intact retrocopies were found enriched in transcription-related functions. Collectively, these findings emphasize the impoant contribution of retroposition to primate genome evolution
Category:
Biochemistry
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