In humans, the gene that causes one of the forms of hereditary deaf-dumbness is recessive in relation to the gene for normal hearing.

In humans, the gene that causes one of the forms of hereditary deaf-dumbness is recessive in relation to the gene for normal hearing. What is the probability of having children with normal hearing from the marriage of two deaf-mute parents?

The probability of having children with normal hearing is 0.

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