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A colour blind man married a woman who is a daughter of a colour blind father and normal homozygous mother. What are the chances of their daughters to become colour blind?

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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Genetic Disorders
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If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Genetic Disorders
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Genetic Disorders
A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Genetic Disorders
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Genetic Disorders
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Genetic Disorders

Statement (S): The heterozygous individuals for sickle-cell anaemia HbAHbS express disease phenotype and also carriers of the disease.

Reason (R): HbAHbS genotype individuals are resistant to severe effects of malaria.

The correct answer is

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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Genetic Disorders
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Genetic Disorders
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Genetic Disorders
A colourblind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their sons being colourblind?