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Question
Haemophilia and red-green colour blindness are
Haemophilia and red-green colour blindness are
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Solution
The correct options are
A X
D recessive
Hemophilia and red-green colour blindness are inherited in an X-linked recessive pattern.
A condition is considered X-linked when gene mutation or the gene responsible for it is located on the X chromosome.
In male, one altered copy of the gene in each cell is enough to cause the condition. Since females have two X chromosomes, a mutation must be present in both copies of the gene to cause hemophilia. Hence, males are affected by X-linked recessive disorders more frequently than females.
A X
D recessive
Hemophilia and red-green colour blindness are inherited in an X-linked recessive pattern.
A condition is considered X-linked when gene mutation or the gene responsible for it is located on the X chromosome.
In male, one altered copy of the gene in each cell is enough to cause the condition. Since females have two X chromosomes, a mutation must be present in both copies of the gene to cause hemophilia. Hence, males are affected by X-linked recessive disorders more frequently than females.
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