developmental biology

Folate supplementation of foods has reduced the number of neural tube defects significantly since its introduction.
Answer the following questions after doing some research, remember to cite your sources. Use APA format for any citations/references
1. What is folate?
2. How does the embryo take up folate/folic acid into cells and within cells ?
3. What are the metabolic pathways that are important during embryogenesis that use folate/folic acid?