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If a father and son are both defective i...

If a father and son are both defective in red-green color vision, is it likely that the son inherited the trait from his father? Comment.

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Gene for color blindness is X-chromosome linked, and sons receive their sole from their mother. not from their father. Male-to-male inheritance is not possible for X-linked traits in humans. In the given case the mother of the child must be a carrier (heterozygous) for colour blindness gene
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