Chorionic Villus Sampling Is Performed During Pregnancy

question 15

Multiple Choice

Chorionic villus sampling is performed during pregnancy. Which are the characteristics of chorionic villus sampling? Select all that apply.

• A)Performed after 10 weeks of pregnancy
• B)Offered if an inherited genetic problem is identified
• C)Used to diagnose 99% of fetal chromosome abnormalities
• D)Offered when a woman is at a maternal age below 35 years at the time of delivery
• E)Used to diagnose chromosome abnormalities and some inherited disorders

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Definitions:

Amino Acids

The building blocks of proteins, consisting of a basic amino group, an acidic carboxyl group, and a unique side chain.

Hydrogen Bonds

A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

Anticodons

Sequences of three nucleotides on transfer RNA molecules that are complementary to codons on messenger RNA and ensure the correct amino acids are added during protein synthesis.