| A | B |
|---|
| ovum | egg cell |
| uterus | organ where baby develops |
| fallopian tube | connects ovary to uterus |
| sperm | male cell |
| conception | sperm fertilizing the ovum |
| chromosome | threadlike structure in every cell |
| gene | unit that determines inherited characteristics |
| genome | blueprint for creation of a person |
| DNA | moleules that make up genes |
| dominate gene | stronger gene |
| recessive gene | weaker gene |
| multiple birth | more than one child at a time |
| identical twin | one egg splits |
| fraternal twin | two eggs fertilized by 2 sperm |
| infertility | inability to conceive a child |
| adoption | legally taking a child into a family |
| artificial insemination | doctor injects sperm into a woman's uterus |
| surrogate | substitute |
| controversial | causing opposing sides |
| prenatal development | development during pregnancy |
| germinal stage | first stage in baby's development |
| zygote | fertilized egg |
| embryo | baby 3rd week to 8th week |
| amniotic fluid | liquid surrounding developing baby |
| placenta | tissue connecting baby to uterus |
| umbilical cord | long tube connecting baby to placenta |
| fetus | baby 8 weeks until birth |
| spontaneous | unplanned |
| REM | rapid eye movement |
