The Body's Warning System

question 728

Multiple Choice

The body's warning system

• A)signals that the body has been, or is about to be damaged.
• B)is carried by small nerve fibers.
• C)involves pain that is nagging, widespread, and extremely unpleasant.
• D)involves all of these characteristics.

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Definitions:

Noninvasive Prenatal Testing

A method to screen for certain genetic conditions in a fetus using maternal blood sample without risk to the fetus.

Ultrasound

A medical imaging technique that uses high-frequency sound waves to produce images of structures within the body, commonly used in prenatal care.

Heritability

A measure of how much of the variation in a trait among individuals within a population can be attributed to genetic differences.

Genomic Imprinting

A genetic phenomenon by which certain genes are expressed in a parent-specific manner, affecting the phenotype of an organism without altering the DNA sequence.