Huntington's disease is caused by the allele H, which is completely dominant to the normal recessive...
Huntington's disease is caused by the allele H, which is completely dominant to the normal recessive allele h. Consider a couple where the man has the genotype Hh, and the woman has the genotype hh. What is the chance that their first child will develop Huntington's disease?
A. 0%
B. 25%
C. 75%
D. 50%
Homework Answers
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Huntington's disease is caused by the allele H, which
is completely dominant to the normal recessive...
A certain disease is caused by a recessive mutant allele. (The wild-type allele is dominant.) However,...
A certain disease is caused by a recessive mutant allele. (The wild-type allele is dominant.) However, the penetrance of the disease is 75%. Two individuals known to be heterozygotes have a child. What is the probability that the child exhibits the disease?
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Ques 30-31. Tay-Sachs disease is caused by an allele, t, that is recessive to the normal allele, T. A normal man and normal woman have three children, a normal son, a normal daughter, and a daughter with the disease. 30. The genotype of the normal woman is a) TT b) Tt c) tt d) a or b are possible e) b or c are possible 31. The probability that the normal son is a Tt carrier of the disease is...
Question 9 (1 point) Achrondroplasia is a form of dwarfism caused by a dominant allele. The...
Question 9 (1 point) Achrondroplasia is a form of dwarfism caused by a dominant allele. The homozygous dominant genotype causes death, so individuals who have the condition are all heterozygous. If a person with achondroplasia mates with a person who does not have achondroplasia, what percentage of their children would be expected to have achondroplasia Question 9 options: A) 0% B) 50% C) 75% D) 100% Question 10 (2 points) This is an example of incomplete dominance. Let H-curly hair and...
MORE GENETICS PROBLEMS Huntington's disease is a dominant allele (not sex-linked) that usually does not manifest...
MORE GENETICS PROBLEMS Huntington's disease is a dominant allele (not sex-linked) that usually does not manifest itself until after age thirty-five. Individuals who have the disease are almost always heterozygous. As a genetics counselor, you are visited by a 23-year- old woman. Her mother has Huntington's, but her father is normal. What is the probability that this woman will develop Huntington's disease as she grows older? Draw a Punnett square. 1.
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6 A human trait that is caused by an autosomal dominant mutant allele has a penetrance...
6
A human trait that is caused by an autosomal dominant mutant allele has a penetrance of 50%. A man who is heterozygous for this mutant allele marries a woman who is homozygous recessive for the normal allele. If they have two children then what is the probability that both children will show the normal phenotype? O 1/4 o 1/2 03/16 0 7/8 09/16
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MORE GENETICS PROBLEMS Huntington's disease is a dominant allele (not sex-linked) that usually does not manifest itself until after age thirty-five. Individuals who have the disease are almost always heterozygous. As a genetics counselor, you are visited by a 23-year- old woman. Her mother has Huntington's, but her father is normal. What is the probability that this woman will develop Huntington's disease as she grows older? Draw a Punnett square. 1.
6
A human trait that is caused by an autosomal dominant mutant allele has a penetrance of 50%. A man who is heterozygous for this mutant allele marries a woman who is homozygous recessive for the normal allele. If they have two children then what is the probability that both children will show the normal phenotype? O 1/4 o 1/2 03/16 0 7/8 09/16
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