Hemophilia is caused by a recessive allele a, located on the X chromosome (i.e. Xa). What are the chances that parents with XAXA x XaY genotypes will have a child with hemophilia?
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The mother has the genotype XAXA (homozygous dominant) and the father has the genotype XaY (hemophilic). Show more…
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Hemophilia A is an X-linked recessive condition. It results in a lack of blood clotting ability. We will use XH to represent the normal allele, Xh to represent the hemophilia allele, and Y to represent the Y chromosome, which does not contain the associated gene. If a mother is a carrier (XHXh), and a father does not have hemophilia A (XHY), what percent chance does a daughter between them have of suffering from this affliction? What percent chance does a son have? Complete a Punnett square on your own paper to help solve this problem. 0% for daughters and 0% for sons 50% for daughters and 50% for sons 50% for daughters and 0% for sons 0% for daughters and 50% for sons
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Hemophilia is caused by an X-linked recessive allele. In a particular population, the frequency of males with hemophilia is 1/4000. What is the expected frequency of females with hemophilia?
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1) Hemophilia A is an X-linked recessive trait. If the incidence of Hemophilia A in a population is 1/10,000 males births, what is the frequency of the recessive allele that causes the disease? 0.0001 0.9999 0.00019 0.12
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