Which Statement About Chorionic Villus Sampling Is Correct

question 42

Multiple Choice

Which statement about chorionic villus sampling is correct?

• A) It enables the physician to study the genetic makeup of the fetus.
• B) It is based on a sample of amniotic fluid taken by needle from the mother's abdomen.
• C) It is usually conducted by a physician between the 14^th and 17^th weeks of pregnancy.
• D) It reduces the chance of spontaneous abortion.

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Definitions:

Ancient Mountain Front

The original forward edge or boundary of a mountain range, often eroded and buried, indicating past tectonic and geomorphological activity.

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A dark-colored, fine-grained sedimentary rock composed mainly of clay minerals, typically formed in low-energy environments like deep water basins.

Stratigraphic Section

A representation or diagram that shows the vertical sequence of rock layers in an area, detailing their composition, age, and relationship to one another.

Transgression

A geological event during which sea level rises relative to the land, causing the shoreline to move inland across the continent.