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Basics of Genetics for Competitive exams

Basics of Genetics

· Incomplete dominance in dihybrids – 3:6:3:1:2:1. Eg: Mirabilis jalapa. Complementory factors (Duplicate recessive epistatis) 9:7, Test cross ratio 1:3. Two separate factors governed the same character. Supplementory factors (Recessive epistasis) – 9:3:4, Test cross ratio 1:1:2. Epistatic factor (dominant epistaris) – 12:3:1. Test cross ratio 2:1:1. The gene which …

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