GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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polygenic inheritance
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Mendelian inheritance
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monogenic inheritance
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complementary genes
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Detailed explanation-1: -A polygenic inheritance in human beings is skin colour. Polygenic or quantitative inheritance occurs when several genes occupying different loci on the same homologous pairs of chromosomes govern one trait. Inheritance of colour in human beings is an example of polygenic inheritance.
Detailed explanation-2: -Polygenic Inheritance: Human skin colour is a good example of polygenic (multiple gene) inheritance. A genotype with all “dominant” capital genes (AABBCC) has the maximum amount of melanin and very dark skin.
Detailed explanation-3: -Inheritance of skin pigmentation is an example of polygenic inheritance. Skin color in humans is controlled by at least three genes. The genes determine the amount of pigment melanin produced.
Detailed explanation-4: -Inheritance of skin colour is an example of polygenic inheritance.