A genetically diseased father (male) marries with a normal female and gives birth to 3 carrier girls and 5 normal sons. It may be which type of genetical disease-

Sex-influenced disease

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Blood group inheritance disease

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Sex-linked disease

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Sex-limited disease

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Solution

The correct option is B Blood group inheritance disease
The trait mentioned here is that of a sex-linked disease. Because the father only passes the Y chromosome to the sons due to which they remain unaffected but the daughters become the carrier of the disease because they receive a defective X chromosome from the father. Mother is normal so no defective alleles are passed onto the offspring from her side.

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