1.

It is good that Guanine methyl transferase is absent in human beings.(a) True(b) FalseI had been asked this question in a national level competition.This interesting question is from Repair of DNA Damage: NER, Direct Reversal topic in section DNA Mutation, DNA Repair, Transposable Elements of Cytogenetics

Answer»

Correct CHOICE is (a) True

For explanation: While de-alkylating agents could lead to the DIRECT reversal of the damages, yet it is a suicide protease. One molecule is irreversibly inactivated in correcting single methylation damage. It is WASTEFUL, and eukaryotes have better ways of taking CARE of the methylation like BER.



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