At About What Point in Gestation Does the Fetal Heartbeat

question 44

Multiple Choice

At about what point in gestation does the fetal heartbeat become audible by stethoscope and the fetus's movements easily felt by the mother?

• A)15 weeks
• B)20 weeks
• C)25 weeks
• D)30 weeks

---

Definitions:

Hemoglobin Molecules

Iron-containing oxygen-transport proteins in the red blood cells.

Recessive Genetic Disease

A disease caused by mutations in both copies of a gene pair in an individual; inheriting only one mutated gene typically results in being a carrier without showing disease symptoms.

Chromosomes 21

One of the 23 pairs of chromosomes in humans; an abnormality in the number of chromosome 21 leads to Down syndrome.

Genetic Disorder

A disease or condition caused by an abnormality in an individual's DNA, ranging from small mutations to large chromosomal changes.