Question

In case of supplementary gene action,
F2 generation shows.........
phenotypic ratio.
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Answer 1

Answer:

Recessive epistasis: when the recessive allele of one gene masks the effects of either allele of the second gene. Dominant epistasis: when the dominant allele of one gene masks the effects of either allele of the second gene. Example 2: ABO blood groups: Bombay phenotype. Phenotypic ratios are 9:3:4 in F2.