Shana Has a Genetic Disorder That Requires Frequent Transfusions Because

question 244

Multiple Choice

Shana has a genetic disorder that requires frequent transfusions because her red blood cells tend to clump in the capillaries, causing oxygen starvation and intense pain. Shana is suffering from:

• A) hemophilia.
• B) pernicious anemia.
• C) Tay-Sachs disorder.
• D) sickle-cell anemia.

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Definitions:

Monophyletic Clade

A group of organisms that includes an ancestor and all of its descendants, representing a single branch on the tree of life.

SIV Strain

A specific variant of the Simian Immunodeficiency Virus, which is a non-human primate virus closely related to the Human Immunodeficiency Virus (HIV).

Gene Trees

Diagrams that show the inferred evolutionary relationships among various genes derived from different species.