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Question
Which one of the following genetic disease is sex – linked?
Which one of the following genetic disease is sex – linked?
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Solution
The correct option is A Royal Haemophilia
Sex-linked genetic disorders are any diseases or abnormal conditions that are caused by a defective gene on the X chromosome, one of the sex chromosomes. These disorders may also involve a deviation in the number of X or Y chromosomes.
Examples of sex-linked disorders caused by a single gene defect on the X chromosome include:
- Duchenne muscular dystrophy, a progressive degeneration of muscle tissue.
- Turner Syndrome, a disorder in which all or part of one of the female's X chromosomes is missing, is an example of this.
- Hemophilia, which is a deficiency in one of several blood-clotting factors and causes uncontrollable bleeding
- Fragile-X syndrome, a problem witih the FMR1 gene on the X chromosome, which can cause mental retardation
Royal Haemophilia
Sex-linked genetic disorders are any diseases or abnormal conditions that are caused by a defective gene on the X chromosome, one of the sex chromosomes. These disorders may also involve a deviation in the number of X or Y chromosomes.
Examples of sex-linked disorders caused by a single gene defect on the X chromosome include:
- Duchenne muscular dystrophy, a progressive degeneration of muscle tissue.
- Turner Syndrome, a disorder in which all or part of one of the female's X chromosomes is missing, is an example of this.
- Hemophilia, which is a deficiency in one of several blood-clotting factors and causes uncontrollable bleeding
- Fragile-X syndrome, a problem witih the FMR1 gene on the X chromosome, which can cause mental retardation
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