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What is the probability of these two parents having Color Blind Son?

What is the probability of these two parents having Color Blind Son?-example-1

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Chances are zero because it will only be passed down to there daughters
User Cyril Durand
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the probability of having a colorblind son is zero. when you cross the parents, only the daughters have the gene for colorblindness but not the sons.
User AvidLearner
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