Which one out of A-D given below correctly re | vedclass

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Question

(B) Basic amino acids are characterized by the presence of an additional amino group $(-NH_2)$ in their side chain ($R$-group),which makes them basic

Vedclass · Accepted Answer

$D$

Vedclass · Answer

(B) Basic amino acids are characterized by the presence of an additional amino group $(-NH_2)$ in their side chain ($R$-group),which makes them basic in nature. In the given structures: $A$ represents Glutamic acid (an acidic amino acid). $B$ represents Serine (a polar,uncharged amino acid). $C$ is not an amino acid structure. $D$ represents Lysine,which contains an additional amino group in its side chain,making it a basic amino acid. Therefore,the correct representation of a basic amino acid is $D$.

Column-$I$	Column-$II$
$(A)$ Immune protein	$(i)$ Haemoglobin
$(B)$ Pigment protein	$(ii)$ Chlorophyll
$(C)$ Involved in $O_2$ transport	$(iii)$ Melanin
$(D)$ Protein essential for photosynthesis	$(iv)$ Immunoglobulin
$(E)$ Protein for muscle contraction	$(v)$ Myosin

Which one out of $A-D$ given below correctly represents the structural formula of a basic amino acid?

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