EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Your parents have dark color skin and you have dark color skin. Which word describes this?
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Variation
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Heritability
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Overproduction
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Reproductive Advantage
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Explanation:
Detailed explanation-1: -Inheritance of Skin Color At least three genes regulate the amount of melanin produced. Each gene has two forms: dark skin allele (A, B, and C) and light skin allele (a, b, and c). Neither allele is completely dominant to the other, and heterozygotes exhibit an intermediate phenotype (incomplete dominance).
Detailed explanation-2: -The darkest skin color indicates the presence of three dominant alleles (AABBCC). Therefore dark skin is a dominant character. The lightest skin color indicates the presence of recessive alleles (aabbcc). Because melanin is a dominant phenotype, and all-white skin genes are recessive.
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