Hemophilia a Is Caused by

question 70

Multiple Choice

Hemophilia A is caused by

• A)an X-linked recessive disorder causing a defective blood clotting protein.
• B)an Y-linked recessive disorder.
• C)a defective neuron response.
• D)an X-linked dominant disorder causing a defective blood clotting protein.
• E)an X-linked dominant disorder.

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Definitions:

Placenta

An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing fetus while removing waste products from the fetus's blood.

Outer Cells

In developmental biology, refers to the cells on the outer layer of a developing embryo, which contribute to the formation of the placenta and other structures.

Embryo

An early stage of development in multicellular organisms after fertilization and before becoming a fetus, characterized by rapid cell division and differentiation.

Prenatal Development

The unfolding of growth and developmental stages within the womb, from the inception of pregnancy to the act of giving birth.