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Psych 210
Chapter 2
| Question | Answer |
|---|---|
| genotype | the complete set of genes that makes up a person's heredity |
| phenotype | genetic instructions along with environmental influences |
| pku | recessive disease babies lack liver enzyme which converts phenyalaline...poison..mental retardation |
| huntingtons disease | dominant disease carried on chromosome 4 |
| down syndrome | have an extra 21st chromosome cuased by the egg |
| klinefelter's syndrome | XXY tall, small testicles, sterile, below normal intellgience |
| XXY Complement | xyy Tall with below normal intelligence |
| TURNER'S SYNDROME | x limited sex development, problems perceiving spacial relations |
| xxx syndrome | motor and language development problems |
| polygenic inheritance | phenotypes reflect the combined activity of many genes |
| reaction range | when the same genotype produces a range of phenotypes depending on the environment |
| niche picking | seeking environments based on heredity |
| nonshared environmental influences | forces within a family that make children different |
| Zygote | Weeks 1-2 fertilized egg, |
| germ disc | small cluster of cells near center of zygote becomes the baby |
| amnion | sac the embryo rests in |
| amniotic fluid | cushions embryo and maintains temp |
| umbilical cord | houses blood vessels that join embryo and placenta |
| ectoderm | hair outer layer |
| mesoderm | middle forms muscles bones and circulatory system |
| endoderm | inner forms digestive sytem and lungs |
| cephalocaudal principle | head to spine |
| proximodistal principle | inner to outer |
| month 5-6 | eyebrows eyelashes and hair, vernix |
| vernix | greasy substance protects fetus in amniotic fluid |
| month three | males develop testes and females ovaries third month testes tell cells to be penis in female the hormone is absent making a vagina |
| age of viability | weeks 22-28 a baby has a chance at survival |
| spina bifida | when a mother does not consume enought folic acid the embryos neural tube does not close properly |
| thalidomide | babies born with deformed limbs |
| fetal alcohol syndrome | thin upper lip short nose widly spaced eyes mental retardation and slow growth |
| amniocentis | needle through stomach is inserted into amniotic fluid, takes 3 weeks for results |
| chorionic villi testing | tissue obtained from placenta through the vagina, done at 8-9 weeks quick results |
| hypoxia | pinched umbilical cord-baby does not receive enough oxygen |
| hypoxia | pinched umbilical cord-baby does not receive enough oxygen |
| low bith weight | weighs less than 2500 grams, 5.5 pounds |
| very low bith weight | weighs less than 1500 grams or 3.3 pounds |
| low bith weight | weighs less than 2500 grams, 5.5 pounds |
| extremely low birth weight | less than 1000 grams or 2.2 pounds |
| extremely low birth weight | less than 1000 grams or 2.2 pounds |
| very low birth weight | less than 1500 grams 3.3 pounds |
| extremely low birth weight | less than 1000 grams or 2.2 pounds |
Created by:
luvbug2707
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