Match the following Column-I with Column-II a | vedclass

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$(C)$ The classification of amino acids based on their $R$ groups is as follows:$(A)$ Polar and uncharged $R$ group: Cysteine contains a sulfhydryl gr

Vedclass · Accepted Answer

$A-iv, B-i, C-ii, D-iii$

Vedclass · Answer

$(C)$ The classification of amino acids based on their $R$ groups is as follows:$(A)$ Polar and uncharged $R$ group: Cysteine contains a sulfhydryl group which is polar but uncharged at physiological pH. Thus, $(A-iv)$.$(B)$ Non-polar $R$ group: Methionine contains a non-polar thioether side chain. Thus, $(B-i)$.$(C)$ Polar and negatively charged $R$ group: Glutamic acid contains a carboxyl group in its side chain, which is negatively charged at physiological pH. Thus, $(C-ii)$.$(D)$ Polar and positively charged $R$ group: Lysine contains an amino group in its side chain, which is positively charged at physiological pH. Thus, $(D-iii)$.Therefore, the correct matching is $A-iv, B-i, C-ii, D-iii$.

Column-$I$ (Type of Amino Acid)	Column-$II$ (Example)
$(A)$ Polar and uncharged $R$ group	$(i)$ Methionine
$(B)$ Non-polar $R$ group	$(ii)$ Glutamic acid
$(C)$ Polar and negatively charged $R$ group	$(iii)$ Lysine
$(D)$ Polar and positively charged $R$ group	$(iv)$ Cysteine

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