A boy is colour blind, in his two sisters one is colour blind and one is carrier $(normal)$. Then who is colour blind in his family
A boy is colour blind, in his two sisters one is colour blind and one is carrier $(normal)$. Then who is colour blind in his family
- A
Father
- B
His grand father and mother
- C
Mother
- D
His grand father
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$I.$ Abnormal development
$II.$ Father
$III.$ Mother
$IV.$ Autosomes
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- [AIIMS 1983]
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