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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 colourblindness 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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OSWAAL PUBLICATION-PRINCIPLES OF INHERITANCE AND VARIATIONS -(TOPIC 2 ) (SEX DETERMINATION AND GENETIC DISORDERS (SHORT ANSWER TYPE QUESTIONS-I))
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  3. What is Y linked inheritance? Give an example.

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  7. How is a child affected if it has grown from the zygote formed by an X...

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  10. Differentiate: autosomes and allosomes.

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