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Thiol group is present in...

Thiol group is present in

A

Cysteine

B

Methionine

C

Cytosine

D

Cystine

Text Solution

Verified by Experts

The correct Answer is:
A
Among 20 naturally occuring amino acids "Cysteine" has .-SH. or thiol functional group.
`implies ` General formula of amino acid `to R- underset(NH_2)underset(|)CH-COOH`
`implies`Value of R`= -CH_2 -SH in Cysteine.
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