Waec Model Questions Vol1 2018 Biology Question 49
Practice objective / multiple choice question 49 from the 2018 Waec Model Questions Vol1 Biology examination.
In a three‑generation pedigree the following pattern is observed: Generation I - an affected mother (M) and an unaffected father (F). All four of their children (two males, two females) are affected. Generation II - an affected male (M2) marries an unaffected female; they have two children, both unaffected. An affected female (F2) marries an unaffected male; they have three children, all affected. No affected individual has an affected parent of the opposite sex. Based on this transmission pattern, identify the most likely mode of inheritance (autosomal dominant, autosomal recessive, X‑linked dominant, X‑linked recessive, or mitochondrial) and justify your choice.
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This is Waec Model Questions Vol1 2018 Biology Question 49. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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