The Cause of Cell Sickling in Sickle Cell Anemia Is

question 9

Multiple Choice

The cause of cell sickling in sickle cell anemia is:

• A) interaction of oxy-Hb S with the cell membrane.
• B) precipitation of deoxy-Hb S into long, chain-like fibers.
• C) formation of oxy-Hb S complexes and subsequent cell disruption.
• D) precipitation of Hb S - Hb A hybrid molecules.
• E) none of the above.

---

Definitions:

Dependent Variable

A variable in an experiment that is expected to change in response to changes in the independent variable.

Independent Variable

An independent variable is a variable that is manipulated or varied by the researcher to investigate its effect on the dependent variable in an experiment.

Dependent Variable

A variable in experimental research that is expected to change as a result of manipulations of the independent variable.

Spurious Relationship

A relationship where two variables seem to be related to each other, but in reality, their association is caused by a third variable or by chance.