The Defect in Canavan Disease That Causes the Symptoms Is

question 4

Multiple Choice

The defect in Canavan disease that causes the symptoms is

• A) deficiency of an enzyme that enables T cells to stimulate B cells, providing immunity.
• B) the stripping of the lipid layer from brain neurons.
• C) proliferation of oligodendrocytes in the brain, causing a glioma tumor.
• D) deficiency of an enzyme that is part of the urea cycle.
• E) excess of a clotting factor.

---

Definitions:

Gas Exchange

The biological process through which different gases (like oxygen and carbon dioxide) are transferred in opposite directions across a respiratory surface.

Erythrocytes

Red blood cells that carry oxygen from the lungs to the body tissues and carbon dioxide from the tissues back to the lungs.

Nuclei

The plural of nucleus, referring to the membrane-bound organelles that contain the genetic material in eukaryotic cells.

Mammalian

Pertaining to mammals, a class of warm-blooded animals characterized by the presence of mammary glands, which females use to feed their young.