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Females have _____ % more probability of inheriting an X-Linked Dominant disorder.

A) 50

B) 25

C) 17

D) 1

User Madivad
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Final answer:

Females have a 50% higher probability of inheriting an X-linked dominant disorder due to their two X chromosomes, providing two chances to inherit the mutant gene.

Step-by-step explanation:

When it comes to X-linked dominant disorders, the probability of inheritance differs for males and females due to the nature of their sex chromosomes. Males have one X chromosome and one Y chromosome, while females have two X chromosomes. A man will always inherit his X chromosome from his mother and the Y chromosome from his father, while a woman inherits one X chromosome from each parent.

In the case of an X-linked dominant disorder, a male only needs one copy of the mutant gene to be affected because he has only one X chromosome. In contrast, a female would likely be affected if she inherits the mutant gene from either parent since she has two X chromosomes. This accounts for female offspring being more likely to inherit an X-linked dominant disorder, as they have two chances to inherit the mutation (one from each parent), whereas males only have one chance, from their mother. The answer to the question is: Females have 50% more probability of inheriting an X-Linked Dominant disorder.

User Uriel Frankel
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