Breeders seed production is taken up from the nucleus seed B and A lines are pollinated in an isolation of 1 Km in a ratio of_________________?

Question

Accepted Answer

1:4. In hybrid seed production, breeder's seed is multiplied by crossing nucleus A and B lines. The standard ratio for pollination in isolation to produce breeder's seed is typically 1:4 (A:B) or similar depending on specific protocols, but 1:4 is a widely accepted standard ratio for maintaining the hybrid in many contexts of this specific exam question type.