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Fruit colour in squash is an example of:
Options
(a) Recessive epistasis
(b) Dominant epistasis
(c) Complementary genes
(d) Inhibitory genes
Correct Answer:
Dominant epistasis
Explanation:
Epistasis is the phenomenon of suppression of phenotypic expression of gene by a nonallelic gene which shows its own effect. A dominant epistatic allele suppresses the expression of a nonallelic gene whether the latter is dominant or recessive. For example , fruit colour of Summer squash (Cucurbita pepo) is governed by a gene which produces yellow colour in dominant state (Y-) and green colour in recessive state (yy).
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Topics: Genetics
(204)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The principal nitrogenous excretory compound in humans is systhesised
- Nucellar polyembryony is reported in species of
- Both, hydrarch and xerarch successions lead to:
- In the sleve elements,which one of the following is the most likely function
- Frogs and toads belong to the order
Topics: Genetics (204)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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