Waec Model Questions Vol1 2025 Biology Question 16
Practice objective / multiple choice question 16 from the 2025 Waec Model Questions Vol1 Biology examination.
A couple has two children. Their first child has cystic fibrosis, an autosomal recessive disorder. Their second child has hemophilia, an X‑linked recessive disorder. Both parents are phenotypically normal. Assuming the next child will be a boy, what is the probability that he will be affected by either cystic fibrosis or hemophilia? Express your answer as a reduced fraction.
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About This Question
This is Waec Model Questions Vol1 2025 Biology Question 16. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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