ACTIVITY F.1. Analyze and answer the problem below. Write your answer in
a separate sheet of paper.
Mr. and Mrs. Villaruz are married for almost a year. As time passed by,
Mrs. Villaruz found out that she was a carrier of a disease called hemophilia.
what are the chances that she could pass this disease to her offspring if Mr.
Villaruz was normal? Explain your answer.
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Answer: The chances are: 1:2 or 50%
Explanation: The chances of the offspring inheriting hemophilia would be 1:2 or 50%, as Mrs. Villaruz's infected x chromosome could be passed down to a female or male child, with 2 of the four total possible outcomes including the infected X chromosome of Mrs. Villaruz.
(A woman who carries an altered gene for X-linked recessive has a 50 percent chance of having sons who are affected and a 50 percent chance of having daughters who carry one copy of the altered gene. )
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