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PSYC-125 CH 1

QuestionAnswer
Genes Units of hereditary that keep their identity from one generation to the next. Come in pairs of chromosomes (strands of genes).
Physiological Relates a behavior to the activity of the brain and other organs. IE: machinery of the body like the routes brain activity takes to control muscle contractions.
Biological Explanations of behaivor (4) Physiological, Ontogenetic, Evolutionary, and Functional.
Ontogenetic How a structure or behavior develops, including the influences of genes, nutrition, etc. Reflects gradual maturation of frontal lobe.
Evolutionary Reconstructs the evolutionary history of a structure or behavior. We inherit the mechanism from a behavior evolved in our ancestors.
Functional Why a structure or behavior evolved as it did. An example being animals with camouflage making them inconspicuous.
Homozygous Same pair of genes on two chromosomes.
Heterozygous Unmatched pair of genes on two chromosomes.
Sex-Linked Genes Genes on the sex chromosomes.
Autosomal Genes All other genes on the autosomal chromosomes.
Sex-Limited Genes Present in both sexes, generally on atsml chrmsms. Active mainly in one sex due to specific sex hormones in one sex or the other.
Epigenetics Deals with changes in gene expression without modification of the DNA sequence.
Created by: 629918026
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