_____ and _____ are the two birth defects that occur when the neural tube fails to close 24 days after conception.
A)Down syndrome; Tay-Sachs disease
B)Trisomy 13; trisomy 18
C)Spina bifida; anencephaly
D)ADHD; autism

Question

Quizplus · Accepted Answer

Spina bifida and anencephaly are two birth defects that occur when the neural tube fails to close 24 days after conception. Down syndrome and Tay-Sachs disease are genetic disorders, while Trisomy 13 and Trisomy 18 are chromosomal abnormalities. ADHD and autism are developmental disorders, but they are not related to neural tube defects.

_____ and _____ Are the Two Birth Defects That Occur

_ and _ Are the Two Birth Defects That Occur