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Chap. 2
Developmental Psychology
Question | Answer |
---|---|
MONOZYGOTIC TWINS (genetically identical) | @ form when cluster of cells in the ovum splits off within the first 2 weeks following fertilization. @ preferred subjects for nature versus nurture studies. |
DIZYGOTIC TWINS (2 separate ova | @ fertilized by two separate sperm @ no more genetically similar than 2 siblings. @ average of 50 percent of genes in common. |
SINGLE CELL | transformed into something resembling a person by the human genetic code. |
DNA | determines the nature of every cell in the body and how it will function. |
GENES | the basic unit of genetic information. |
CHROMOSOMES | are rod-shaped sections of DNA organized into 23 pairs. |
POLYGENIC INHERITANCE | the result of many traits; a combo of multiple gene pairs leads to a particular traits. these genes are neither dominant nor recessive, but instead are a combination. |
BEHAVIORAL GENETICISTS | explore the effects of heredity on behavior and psychological characteristics. |
TEMPERAMENT | Patterns of arousal and emotionality that represent consistent and enduring characteristics. |
3 PHASES of the PRENATAL PERIOD | GERMINAL, EMBRYONIC, FETAL |
___________ can disrupt the development of the fetus. | ALCOHOL & CIGARETTES |
MISCARRIAGE | embryo detaches from wall of uterus and is expelled. 15-20% of all pregnancies end. |
Common threats of prenatal development | age, diet, health, drugs, and health care. |