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

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

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Sons get their only X chromosome from mother,not from father .Mother of the child must be carrier i.e. haterozygous for this gene.Male to male ingeritance of X-linked character is not possible in human.
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