Which of the following is a type of trisomy associated with fetal anomalies?

Trisomy 13, also known as Patau syndrome, is a chromosomal condition that leads to a range of severe birth defects and is classically associated with significant fetal anomalies. Infants born with this condition often present with characteristic physical malformations, including cleft lip and/or palate, congenital heart defects, polydactyly, and various neurological and developmental issues. The presence of these anomalies makes Trisomy 13 a prominent example when discussing genetic conditions that lead to fetal abnormalities.

In contrast, Trisomy 22 and Trisomy 16 are less commonly recognized as viable conditions at birth and often result in miscarriage or stillbirth early in pregnancy. Trisomy 23, which corresponds to sex chromosomes (XXY or XYY syndromes), presents differently and is associated with variances in sexual development rather than significant fetal anomalies during gestation. Therefore, Trisomy 13 stands out as the type of trisomy that is directly linked with a wide array of fetal anomalies, providing clarity to why it is the correct response.