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Genes occur in pairs.

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in Biology – Class 12 by (271k points)
Genes occur in pairs.

(a) True

(b) False

This question was posed to me in exam.

This interesting question is from Chromosomal Theory of Inheritance-1 in division Principles of Inheritance and Variation of Biology – Class 12

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The correct answer is (a) True

Explanation: Genes are present on chromosomes. Each diploid cell has a set of two chromosomes. Thus, genes also occur in pairs. The pair of genes are called alleles if they code for a different protein. Usually, one copy of gene is enough to code for a functional protein. Hence the other copy is kept silent. This results in the dominant and recessive nature of the genes.

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