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a person is heterozygous for an autosomal dominant condition. if they have children with someone whonis...

a person is heterozygous for an autosomal dominant condition. if they have children with someone whonis homozygous recessive, which statement is correct?
A) all of their children will have the condition
B) none of their children will have the condition
C) all of their children will be carriers
D) half of their children will be carriers
E) half of their children will have the condition
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Answer #1

Since

Parent 1= heterozygous

Genotype= Aa

Parent 2= homozygous recessive

Genotype = aa

From the parents cross Aa x aa

The children can have genotype: Aa or aa

Aa = heterozygous (carrier)

aa = homozygous (diseased)

Thus, the correct option is

D) half of their children will be carriers

E) half of their children will have the condition

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