Final answer:
Chorionic villus sampling is indeed a procedure that involves taking a sample of chorionic villi from the placenta to obtain fetal genetic information, thus the statement is true.
Step-by-step explanation:
The statement that chorionic villus sampling involves removing a small piece of the placenta for genetic testing is True. Chorionic villus sampling (CVS) is a prenatal test where a sample of chorionic villi is taken. These villi are tiny, finger-like projections that line the placenta and come into contact with maternal blood. The procedure involves taking a sample of these villi to analyze the fetal cells within them, thereby providing genetic information about the fetus. This is crucial for detecting any chromosomal abnormalities early on. Since the chorionic villi are of fetal origin, they provide a good source of fetal DNA for testing.