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39 Cards in this Set
- Front
- Back
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Joining of a sperm cell with an egg cell
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fertilization
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a fertilized egg cell
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zygote
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cluster of cells with a hollow space in the center that implants in the uterus
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blastocyst
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cluster of developing cells that have impanted in the uterus
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embryo
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The name of the developing baby from the 9th week of pregnancy until birth
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fetus
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The process of passing traits from the parents to the child
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heredity
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Tiny threadlike structures that carry hereditary traits in living cells
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chromosomes
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Parts of DNA molecules in a persons cells that determine our individual traits
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Genes
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stronger traits that typically show up in a person
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dominant
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weaker traits that show up
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recessive
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The time before birth when the baby is developing
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Prenatal
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Doctor who cares for a pregnant woman
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Obstetrician
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When a baby is born too early
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Premature
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a tube connected to the placenta through which nutrients and oxygen pass to the baby
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umbilical cord
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Organ attached to the uterus that protects the baby and provides nutrients
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Placenta
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a fluid filled membrane surrounding the developing baby
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amniotic sac
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a test in which a needle is inserted into the amniotic fluid to test for genetic problems
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amniocentesis
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a test that uses sound waves to produce a picture of the fetus
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ultrasound
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a test for genetic defects in which a piece of memrane is removed from the chorion
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chorionic villi sampling
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Who determines the sex of the baby?
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Dad!
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When is the sex of the baby determined?
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Conception!
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What chromosome(s) does the egg carry?
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X
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What chromosome(s) does the sperm carry?
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X and Y
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WHat chromosome combination makes up a girl?
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XX
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What chromosome combination makes up a boy?
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XY
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Develop from 1 fertilized egg that splits in two
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Identical Twins
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Develop from 2 eggs and 2 sperm
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Fraternal Twins
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develop from 3 eggs and 3 sperm
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Fraternal Triplets
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develop from 1 fertilized egg that splits twice
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Identical Triplets
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Develop when the fertilized eg does not completely split
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Conjoined twins
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the process by which the bby gradually moves out if tge uterus into the vagina
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Labor
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The opening of the cervix during the first stage of labor
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Dilation
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the water breaks during this stage of labor
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second
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This stage begins when the cervix is fully dilated
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second
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When the baby's head is seen at the opening of th vagina
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crowinning
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an incision made from the vagina toward the anus to enlarge theopening for delivery of a baby
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episiotomy
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a method of childbirth in which a surgical incision is made through the abdominal wall and uterus
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cesarean birth
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The baby is born in this stage
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the third
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the cervix begins to dilate in this stage
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first
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