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NEET2014ZoologyPrinciples of Inheritance and VariationActual

Fruit color in squash is an example of:

Options

  1. ARecessive epistasis
  2. BDominant epistasis
  3. CComplementary genes
  4. DInhibitory genes

Correct answer

B. Dominant epistasis

Step-by-step solution

A condition when a dominant gene masks the effect of the other non-allelic gene is known as dominant epistasis. The gene that suppresses the other gene is known as inhibiting or epistatic factor and the one, which is prevented from exhibiting itself, is known as hypostatic. The fruit color in summer squash may be white, yellow, or green. White fruits are produced by a domain epistatic allele 'W'. At another locus, Y for yellow fruits is dominant to its allele y for green fruits. Dominant white hides the eff

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