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Tsking suitable eg from humans,explain polygenic inheritence .Suppose a dark complexioned woman marries white complexioned man then what wolud be the colour of the skin of their child? explain in detail

Tsking suitable eg from humans,explain polygenic inheritence .Suppose a dark  complexioned woman marries  white complexioned man then what wolud be the colour of the skin of their child?

explain in detail

Grade:12

1 Answers

Raheema Javed
156 Points
9 years ago
Polygenic inheritance refers to a single characteristic that is controlled by more than two genes (also called multifactorial inheritance)
Polygenic inheritance patterns normally follow a normal (bell-shaped) distribution curve - it shows continuous variation
By increasing the number of genes controlling a trait, the number of phenotype combinations also increase, until the number of phenotypes to which an individual can be assigned are no longer discrete, but continuous


Human Skin Colour

The colour of human skin is determined by the amount of dark pigment (melanin) it contains
At least four (possibly more) genes are involved in melanin production; for each gene one allele codes for melanin production, the other does not
The combination of melanin producing alleles determines the degree of pigmentation, leading to continuous variation


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