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Question
A sex linked trait/ disease is?
A sex linked trait/ disease is?
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Solution
The correct option is A Colour blindness/ haemophilia
- Color blindness: It is sex-linked: genetic red-green color blindness affects males much more often than females because the genes for the red and green color receptors are located on the X chromosome, of which males have only one and females have two. Females (XX) are red-green color blind only if both their X chromosomes are defective with a similar deficiency, whereas males (XY) are color blind if their single X chromosome is defective.
- Haemophilia: It is a recessive X-linked genetic disorder resulting in a deficiency of functional clotting Factors. Hemophilia is a sex-linked recessive disorder. These kinds of defects occur more often in men than in women.
So, the correct answer is 'Colour blindness/ haemophilia'.
- Color blindness: It is sex-linked: genetic red-green color blindness affects males much more often than females because the genes for the red and green color receptors are located on the X chromosome, of which males have only one and females have two. Females (XX) are red-green color blind only if both their X chromosomes are defective with a similar deficiency, whereas males (XY) are color blind if their single X chromosome is defective.
- Haemophilia: It is a recessive X-linked genetic disorder resulting in a deficiency of functional clotting Factors. Hemophilia is a sex-linked recessive disorder. These kinds of defects occur more often in men than in women.
So, the correct answer is 'Colour blindness/ haemophilia'.
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