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18 Dec 2019

a man and woman who are both heterozygous for a recessive traitwant to marry and have six children. what is the probability thatat least 3 of those children will be affected with the disease

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Keith Leannon
Keith LeannonLv2
31 Dec 2019
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Related questions

1.In humans, PKU is an inherited metabolic disease, which if untreated leads to death at about the age of six. It is inherited as a recessive trait. What is the probability that two heterozygous parents will have:

a)a PKU child?

b)A heterozygous child?

c)A homozygous non-PKU child?

Explain your answer.

2.Unattached earlobes are inherited as a dominant trait; attached earlobes a recessive trait. Suppose a homozygous man with unattached earlobes marries a homozygous woman has attached earlobes:

a)What type of earlobes will their children have?

b)If these children marry someone with the same genotype as themselves, will all of their children have attached lobes?

Explain your answer.

PKU disease is recessive. A man and a woman are both carriersfor PKU disease.

Determine the following:

Genotype of the man

Genotype of the woman

Possible genotypes of children

Possible phenotypes of children

Probability of PKU disease in their children

What is the probability that two parents, who are both carriers of an autosomal recessive disease, will have four children who are all affected by the disease?

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