Which Is Incorrect About the Fc Region of an Immunoglobulin

question 80

Multiple Choice

Which is incorrect about the Fc region of an immunoglobulin?

• A)is called the crystallizable fragment
• B)forms the antigen binding sites
• C)contains an effector molecule that can bind to cells such as macrophages and mast cells
• D)contains an effector molecule that can fix complement
• E)determines the class to which the immunoglobulin belongs

---

Definitions:

Nerve Processes

The extensions from a neuron, including dendrites and axons, that transmit electrical and chemical signals to and from the nerve cell body.

Clinical Trials

Research studies performed in people that are aimed at evaluating a medical, surgical, or behavioral intervention.

Consensual Experiments

The experimental research in which all participants give their informed consent prior to participation.

Pineal Body

A small endocrine gland in the brain that produces the hormone melatonin, which regulates sleep-wake patterns and seasonal biological rhythms.