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Two Normal Individuals Have a Child Who Has Cystic Fibrosis,an

Question 40

Multiple Choice

Two normal individuals have a child who has cystic fibrosis,an autosomal recessive disease.What were the chances of this happening? (Draw a Punnett square to help you determine the answer. )


A) 1:4 chance
B) 2:4 chance
C) 3:4 chance
D) 4:4 chance
E) less than 1:4 chance

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