Trisomy 21 is the Only Autosomal Trisomy That Allows Survival

Question

Trisomy 21 is the only autosomal trisomy that allows survival into adulthood.

Accepted Answer

Trisomy 21, also known as Down syndrome, is the only autosomal trisomy that allows survival into adulthood. Other autosomal trisomies, such as trisomy 13 and trisomy 18, are usually fatal in infancy or childhood.