Pregnancy, Birth, and Growth Flashcards
What is the one job of outer membrane? Why is it important?
To keep the corpus luteum alive. This is important because the corpus luteum secretes a hormone that helps the fertilized egg develop.
During embryonic and fetal development the developing baby is enclosed in the amniotic sac. This sac is filled with fluid for what purpose?
Protection.
Do the blood of the mother and baby mix during pregnancy?
No.
During birth, the ____ must open. What does the mother’s body do to facilitate the birth?
Cervix. The body contorts the muscles of the uterus.
Why is it important for the whole placenta to be delivered after the baby? What two things may happen to the mother is this does not happen?
Because the mother may become sick, or internal bleeding.
From what source does the baby receive food and oxygen?
The bloodstream.
When do humans grow the fastest?
Before birth.
What two things are your traits determined by?
Heredity and environment.
Each child gets two genes for each trait, from whom?
Their mother and father.
If a girl is color-blind, and her mother had normal color vision, what are the genotypes of her parents?
XNXn for the mother, and XNY for the father, because color-blindness is sex-linked, and dominant.
If two tongue-rollers have a child who cannot roll his tongue, then is tongue-rolling dominant or recessive? What would be the genotypes for the mother, father, and child?
Dominant. Tt, Tt, and tt, respectively.
If dimples are dominant, and not having them is recessive, then what is the phenotype of Dd? If the father and daughter have dimples, and the mother doesn’t, then what are the genotypes for the dad, mom, and daughter?
D?, dd, and Dd.
CHECK CHARTS 129 & 130 AND PRACTICE WITH OTHER PROBLEMS.
CHECK CHARTS 129 & 130 AND PRACTICE WITH OTHER PROBLEMS.
