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07/10/2021 6:42 pm
Topic starter
Of both normal parents, the chance of a male child becoming colour blind are
(1) possible only when father’s mother was colour blind
(2) no
(3) possible only when mother’s father was colour blind
(4) possible only when all the four grand parents had normal vision
1 Answer
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07/10/2021 6:42 pm
Correct answer: (3) possible only when mother’s father was colour blind