Dentinogenesis Imperfecta is a Rare,autosomal,dominantly Inherited Disease of the Teeth

question 23

Multiple Choice

Dentinogenesis imperfecta is a rare,autosomal,dominantly inherited disease of the teeth that occurs in about one in 8000 people Witkop 1957 .The teeth are somewhat brown in color,and the crowns wear down rapidly.Assume that a male with dentinogenesis imperfecta and no family history of the disease marries a woman with normal teeth.What is the probability that their first two children will have dentinogenesis imperfecta?

• A)1/4
• B)100%
• C)1/2
• D)3/4
• E)1/8

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