Why might lower folic acid (a precursor to Tetrahydrofolate) levels in pregnant women lead to arn increased risk of birth defects for the baby?

The correct answer is - it is essential to produce red blood cell and development of the spinal cord and brain.

Explanation:

Folic acid is natural form of vitamin B9 which is essential for producing red blood cells therefore the level of this vitamin should be in proper amount as in fetuses it is crucial for the various organs to develop,

The neural tube, spinal cord, and brain growth requires appropriate amount of folic acid in pregnant women. Low level of this vitamin can leads to the risk of various disease in baby

Thus, the correct answer is - it is it is essential to produce red blood cell and development of the spinal cord and brain.