Down syndrome can be described as sporadic in that:
A)There's no evidence it runs in families
B)It reflects chromosomal abnormalities
C)It typically resolves by the seventh year of age
D)It tends to arise every other generation in families
E)It is wholly independent of genetic factors

Question

Quizplus · Accepted Answer

Down syndrome is typically sporadic because it usually occurs as a random event during the formation of reproductive cells, and there is no evidence that it runs in families.

Down Syndrome Can Be Described as Sporadic in That