Igcse Model Questions Vol1 2021 Biology Question 15
Practice objective / multiple choice question 15 from the 2021 Igcse Model Questions Vol1 Biology examination.
In a species, red‑green colour blindness is an X‑linked recessive trait. A female is a carrier (genotype \(X^{N}X^{c}\)) and a normal male is \(X^{N}Y\). They have two children. Assuming each child's sex is independent and equally likely, calculate the probability that at least one of the two children is colour blind.
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About This Question
This is Igcse Model Questions Vol1 2021 Biology Question 15. It is one of the objective questions from the 2021 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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