Hemophilia Is Caused by an X-Linked Recessive Mutation in Humans

question 64

Multiple Choice

Hemophilia is caused by an X-linked recessive mutation in humans.If a woman whose paternal uncle (father's brother) was a hemophiliac marries a man whose brother is also a hemophiliac, what is the probability that their first child will have hemophilia? (Assume that no other cases of hemophilia and no hidden carriers exist in the pedigree. )

• A)0
• B)1/4
• C)1/2
• D)1/8
• E)1

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Definitions:

Family Roles

The functions and responsibilities assigned to each family member, often influenced by cultural norms and individual family dynamics.

Moratorium

A period of delay or suspension of an activity or obligation, often used in contexts of developmental psychology to describe a stage of identity exploration.

Identity Development

The process through which individuals understand and realize their own identities, including personal, social, and cultural aspects.

James Marcia

A psychologist notable for his work on adolescent development, specifically his theory on identity achievement and identity statuses.