A birth defect known as spina bifida results from the incomplete closure of the embryonic neural tube. Which germ layer is affected?
A) endoderm
B) mesoderm
C) myotome
D) ectoderm

Question

Quizplus · Accepted Answer

The ectoderm is the germ layer that gives rise to the neural tube, which forms the brain and spinal cord. Spina bifida results from issues in the closure of the neural tube, thus affecting the ectoderm.

A Birth Defect Known as Spina Bifida Results from the Incomplete