Q. When one gene pair hides the effect of the other unit, the phenomenon is referred to as ____:
Answer: Epistasis
Notes: Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic not intragenic level, Epistasis works at inter generic level. Epistasis is of following types: ? Due to a recessive allele: A hides the effect of B, ? Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that either A hides the effect of B or vice versa.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 143 in 39. Genetics, Inheritance and Evolution in above course in App.