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Lecture 7

PSYC 2250 Lecture 7: Lecture 7

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PSYC 2250
Steven Hladkyj

lo982 9182015 6:46:00 PM Chapter 2 Genetic Bases of Child Development The biology of Heredity Conception Fertilization Ovum = unfertilized travel to fallopian, uterus = menstruation Fertilized = zygote then formation Ovum can usually last a day some sperm can last 6 days Fraternal twins Develop from two eggs fertilized by two sperm 23 of twins are fraternal Identical twins Single fertilized egg splits in two Reproductive Technology Fertility drugs Artificial insemination 7080 successful, sperm injected when ovum is present In vitro fertilization Involves mixing sperm and egg together in a laboratory dish and then placing a few of these fertilized eggs in the mothers uterus Surrogate mothers Has been banned in Canada because some other surrogate mother dont want to give up the child When mothers cant carry the baby so they hire a surrogate mother to carry the child Restriction of reproductive technologies
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