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Question

Both husband and wife have normal vision though their fathers were colour blind and mothers without any allele for colour blindness. The probability of their daughters becoming colour blind is

A
0%
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B
15%
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C
25%
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D
50%
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Solution

The correct option is A 0%
In family history, father and mother have normal vision, the probability of daughter becoming colour blindness is 0%, because in both parents no presence of genes for colour blindness.
So, the correct option is '0%'

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