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10 Cards in this Set
- Front
- Back
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environments
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everything DNA lives in, through
-molecules -uterus -external (food, temp) -social environment ENVIRONMENT DETERMINES WHICH DNA EXPRESSED |
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how sense organs affect environment
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sense organs give info to brain
--> evaluates environment --> convert info to signals that express certain genes ex- stress increases cortisol |
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sparrows from each of 3 places reared in isolation, do hear song from their home...what happens?
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develop songs like each others
different from home dialect |
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sparrows from each of 3 places reared in isolation, tutored in Marin song and other species song...what happens?
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copied Marin song, ignored other species' song
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sparrows from each of 3 places reared in isolation, tutored in song sparrow song only...what happens?
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develop weird song unlike anything you'd hear in wild
ignored other species' song completely |
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conclusion about bird song learning
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bird has innate limits on timing of learning, what can be learned
each species learns own song, not that of other species in environment |
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allelic differences
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difference comparison implied
-you have an allele that leads to certain trait, but other alleles dont lead to it |
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girls with CAH draw more like boys
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elevated levels of androgens- change socialization, environment (make seek male companions)
*environment co-varies with testosterone (genes) |
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why ask nature-nurture question?
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want to understand what controls traits
-diseases, aberrant social behavior |
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why is it hard to separate E and G?
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1. genotype determines environment
2. E and G interact- interdependent |
