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On which of the following factors, the amount of melanin produced depends?

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in Biology – Class 12 by (271k points)
On which of the following factors, the amount of melanin produced depends?

(a) Number of recessive alleles

(b) Number of chromosomes present in an individual

(c) Number of dominant genes

(d) Number of loci present in DNA

I have been asked this question in an interview for job.

This question is from Polygenic Inheritance topic in portion Principles of Inheritance and Variation of Biology – Class 12

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Right option is (c) Number of dominant genes

Best explanation: The amount of melanin produced in the skin of humans is always proportional to the number of dominant genes. The effect of all the genes that are responsible for the skin colour is additive.

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