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Why does skin colour show a continuous variation?

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प्रश्न

Why does skin colour show a continuous variation?

अति संक्षिप्त उत्तर
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उत्तर

Skin colour is influenced by several genes whose additive effects determine melanin production. Environmental factors also influence the phenotype, producing a continuous range of shades.

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अध्याय 5: Principles of Inheritance and Variation - EXERCISES [पृष्ठ २५७]

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