A Certain Type of Congenital Deafness in Humans Is Caused

question 30

Multiple Choice

A certain type of congenital deafness in humans is caused by a rare autosomal dominant gene.In a mating involving a deaf man and a deaf woman,could all the children have normal hearing?

• A)Yes,assuming that the parents are heterozygotes because the gene is rare ,it is possible that all of the children could have normal hearing.
• B)No,because it is dominant.Children always get the dominant alleles.
• C)Yes,because it must be recessive if it's rare.
• D)Yes,because traits assort independently.
• E)No,because children favor their parents.

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