Suppose a woman is a symptomless carrier of a recessive x-linked disease. If her husband has the disease, what is the chance that their first child is a girl who also has the disease? A)100% B)50% C)0% D)25%

Suppose a woman is a symptomless carrier of a recessive x-linked disease. If her husband has the disease, what is the chance that their first child is a girl who also has the disease? A)100% B)50% C)0% D)25%

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Description: Suppose a woman is a symptomless carrier of a recessive x-linked disease. If her husband has the disease, what is the chance that their first child is a girl who also has the disease?A)100%B)50%C)0%D)25%

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter20: Chromosomes And Human Genetics

Section: Chapter Questions

Problem 2CT: Human sex chromosomes are XX for females and XY for males. a. With respect to an X-linked gene, how...

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Human sex chromosomes are XX for females and XY for males. a. With respect to an X-linked gene, how many different types of gametes can a male produce? b. If a female is homozygous for an X-linked allele, how many different types of gametes can she produce with respect to this allele? c. If a female is heterozygous for an X-linked allele, how many different types of gametes can she produce with respect to this allele?
What will be the sex of an individual who is easily affected by an X-linked recessive trait? Why?
If a male is homozygous dominant and a female is heterozygous, what is the probability that their child will be homozygous recessive?
A color-blind man marries a woman with normal vision whose father was color-blind. Remember that color-blindness is an X-linked recessive trait. Hint: see figure 12.7 in book. A) What is the probability that their first child will be a color-blind daughter? B) What is the probability that their first son will be color-blind?
Color-blindness is an X-linked, recessive trait. If a normal-sighted woman, whose father was color-blind, marries a color-blind man, what is the probability that they will have a son who is color-blind? (use the letter “B”)
Can males be a carrier of an X-linked recessive trait? How about females?
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A man with X-linked color blindness marries a woman with no history of color blindness in her family. The daughter of this couple marries a normal man, and their daughter also marries a normal man. What is the chance that this last couple will have a child with color blindness? If this couple has already had a child with color blindness, what is the chance that their next child will be color blind?
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