[Campbell Biology P.338] According to Figure 14.19, what is the primary advantage of chorion... | Practice Question

According to Figure 14.19, what is the primary advantage of chorionic villus sampling CVS over amniocentesis?

  • A: CVS has a lower risk of complications.
  • B: CVS can be performed earlier in the pregnancy.
  • C: CVS can test for more genetic disorders.
  • D: CVS provides a sample of amniotic fluid, which contains more information.

Explanation

The text and Figure 14.19 explicitly state that CVS can be performed as early as the 10th or 11th week of pregnancy, whereas amniocentesis is performed starting at the 15th or 16th week. This is noted as the main advantage of CVS.