In humans, normal color vision is the result of a dominant gene (xM) carries on the X chromosome. Color blindness is the result of a recessive gene (xm) carried on the X chromosome. What would happen if you crossed a colorblind female with a male with normal vision?

Question

Biology

Jamie Wood

19 March, 08:50

In humans, normal color vision is the result of a dominant gene (xM) carries on the X chromosome. Color blindness is the result of a recessive gene (xm) carried on the X chromosome. What would happen if you crossed a colorblind female with a male with normal vision?

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Answers (1)

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Reese Berg · Answer 1

The chance of a female offspring having colorblindness is 0%, and the chance of a male offspring have colorblindness is 100%.

Explanation:

You're crossing a colorblind female (X^m X^m) with a male w / normal vision (X^M Y). The Y chromosome is irrelevant here. You would then have offspring with the possible genotypes: X^m X^M, X^m X^M, X^m Y, or X^m Y. So, in other words, the chance of a female offspring having colorblindness is 0%, and the chance of a male offspring have colorblindness is 100%.