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NEET 2016 Biology question

BiologyPrinciples of Inheritance and VariationNEET 2016

Column - I (a) Dominance (b) Codominance (c) Pleiotropy (d) Polygenic inheritance Column - II (i) Many genes govern a single character (ii) In a heterozygous organism only one allele expresses itself (iii) In a heterozygous organism both alleles express themselves fully (iv) A single gene influences many characters

Answer: (2)

Solution

Dominance - in a heterozygote only one allele (the dominant one) expresses itself, so (a)-(ii). Codominance - both alleles express themselves fully in a heterozygote (e.g. AB blood group), so (b)-(iii). Pleiotropy - a single gene influences many

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Question ID VK-091960