Which of the following agents causes mutation | vedclass

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(C) Deamination is a chemical process that removes an amino group from a molecule. $HNO_2$ (nitrous acid) is a well-known chemical mutagen that acts b

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$HNO_2$ and $UV$ radiation

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(C) Deamination is a chemical process that removes an amino group from a molecule. $HNO_2$ (nitrous acid) is a well-known chemical mutagen that acts by deaminating nitrogenous bases in $DNA$. For example,it converts adenine to hypoxanthine and cytosine to uracil,leading to transition mutations. $UV$ radiation is also a mutagen,though it acts primarily by forming pyrimidine dimers. Among the given options,$HNO_2$ is the primary agent that causes mutations specifically through the mechanism of deamination.

Which of the following agents causes mutations by deamination?

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