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psych U3M14

genetics

QuestionAnswer
genetics The study of heerdity
Human genome the instructions for making a human; consists of all genetic material in the chromosomes.
molecular genetics field of biology that studies the molecular function of genes
polygenic inheritance single gene contributes to more than one trait
identical twins twins who develop from a single fertilized egg that split in two, creating 2 genetically identical organisms
fraternal twins twins who develop from separate fertilized eggs. Not as close as identical twins, but they share a fetal environment.
heriability The extent to which variation among individuals comes from genes.
down syndrome break in the 21st chromosome; causes mental retardation, physical deformities
Huntington's chorea degeneration of basil ganglia; muscle impairment after age 40
epigenetics the study of environmental influences of gene expression that occur without a DNA change (external influence rather than internal)
what are the three types of studies used in human behavior genetics? family studies, adoption studies, identical twins
Hindbrain Heart rate and blood pressure
midbrain vision and hearing regulation (eyes and ears in middleish part of head)
forebrain regulation of emotion "it's all in your (FORE)HEAD"
progesterone produced in ovaries; prepares body for pregnancy
kinship studies aims to determine role that heredity and environment play in determining a trait
what causes differences in identical twins? environmental factors (external)
Created by: allyson.lee