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

A. Lysin

B. Tryptophan

C. Tryptophan and Lysin both

D. Protein

Answer: Option A

Solution(By Examveda Team)

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.