Which of the Following Supports the Ligand-Mediated Model of Receptor

question 47

Multiple Choice

Which of the following supports the ligand-mediated model of receptor dimerization?

• A)Some growth and differentiation factors like PDGF or CSF-1 are composed of two similar or identical disulfide-linked subunits, each of which has a binding site for a receptor.
• B)Ligands have been found to be proteins that usually dimerize.
• C)Ligands have been found to be steroid hormones.
• D)Ligands were found to bind to each other.
• E)Receptors have been shown to have multiple binding sites for ligands.

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Definitions:

Breast Cancer

A type of cancer that forms in the cells of the breasts, affecting both men and women but predominantly women.

Diabetes

A chronic condition characterized by high levels of sugar in the blood, resulting from the body's inability to produce or properly use insulin.

Vaginal Dryness

A condition characterized by a lack of moisture in the vaginal area, often leading to discomfort during intercourse and daily activities.

Infertility

The failure to establish a pregnancy after 12 months of regular, unprotected sexual intercourse. Also referred to as impaired fecundity.