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Opaque-2 maize composition are richer as compared to normal maize in

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Correct Answer: Option A
Opaque-2 maize composition is richer as compared to normal maize in Lysin.
Opaque-2 (o2) is a regulatory locus in maize that plays an essential role in controlling the expression of genes encoding the 22-kD zein proteins.
Through DNase I footprinting and DNA binding analyses, we have identified the binding site for the O2 protein (O2) in the promoter of 22-kD zein genes.
Opaque mutant enhances the lysine and tryptophan content in maize endosperm.
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