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Principles of Inheritance and Variation question

2001 · Q27
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Principles of Inheritance and Variation question

2001 · Q27

NEETBiologyPrinciples of Inheritance and VariationMCQ+4 / −1
Two nonallelic genes produces the new phenotype when present together but fail to do so independently then it is called : -
  1. A
    Polygene
  2. B
    Complimentry gen
  3. C
    Non complimentry gene
  4. D
    Epistasis
View written solutionFree

Correct answer: D

Epistasis is the phenomenon of suppression of phenotypic expression of gene by a non-allelic gene which shows its own effect. The gene which masks the effect of another is called epistatic gene while the one which is suppressed is termed hypostatic gene. Epistasis is of three types - dominant, recessive and dominant-recessive.

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