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Ubiquitin is a ___________________(a) protein(b) organelle(c) nuclear body(d) aggragated complexThis question was posed to me in a national level competition.The origin of the question is Gene Expression Control topic in chapter Control of Gene Expression of Cell Biology

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Right option is (a) protein

The best explanation: Ubiquitin is an important protein that PERFORMS functions in diverse cellular PROCESSES. It is a SMALL and highly conserved protein. A SINGLE attached ubiquitin can serve as a sorting signal leading the associated polypeptide to a specific pathway.



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