Ch 4 Prenatal Development

2. The units within your chromosomes that determine your inherited traits.
3. The weaker gene that must come in pairs in order to be expressed.
7. This is the second and most crucial stage of fetal development.
10. Where conception takes place.
13. The tube that connects the baby to the placenta. This carries the oxygen and nutrients to the baby.
15. A fluid filled sac that protects the growing fetus while in utero.
18. This is the third and final stage of fetal development. It lasts the longest.
19. This is the first stage in fetal development.

1. The process of the sperm fertilizing the ovum.
4. Tiny threadlike structures of every cell that make up our DNA. You receive all 46 at conception.
5. The complete blueprint for the creation of a person.
6. A problem or abnormality that a baby is born with.
8. The key to supplying nutrients and oxygen to the baby in utero.
9. The pear shaped organ in a woman's body where the baby grows and develops during pregnancy.
11. The loss of a baby after 20 weeks.
12. The egg cell released from a woman's ovaries every 28 days.
14. The strong gene that will always be expressed.
16. The loss of a baby at 20 weeks or less.
17. The inability to have children.