Correct option is A
✅ (a) Narin-10: • Norin-10 (often misspelled as Narin-10) is a dwarfing gene derived from Japanese wheat. • It led to the development of semi-dwarf wheat varieties used in the Green Revolution. • Helps prevent lodging and increases yield.
❌ (b) Dee-gee-woo-gen: • Dwarfing gene in rice, not wheat.
❌ (c) Opaque-2: • Related to maize, improves lysine content, not dwarfing.
❌ (d) None of the above: • Incorrect, as (a) is correct.