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15 Cards in this Set
- Front
- Back
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Heritability |
Is a statistic |
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Estimates tell us about |
Contribution of genetic differences to phenotypic differences |
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Estimates do not tell us |
Anything about relative contribution of genes and environment to development |
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Twin studies show that |
Twins are more similar regardless of environment |
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Monozygotic |
From same egg (zygote) - identical twins |
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Dizygotic |
From different eggs (zygotes) - not identical twins |
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Down's syndrome is also known as |
Trisomy 21 |
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Down's syndrome involves |
Over expressed gene DSCAM |
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DSCAM encodes signalling molecule which |
Facilitates attraction & repulsion of axons (influences nervous system development) |
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Alzheimer's disease involves |
Three major alleles of APOE (2, 3, & 4) |
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APOE transports |
Lipoproteins expressed in brain by astrocytes |
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APOE4 has the |
Largest risk - most common found in Alzheimer's patients |
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Based on a rat study, intelligence is mostly |
Nature (genetic) |
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Less intelligence meant |
Less fear & non-adaptive |
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Environment still matters because |
Potential is not realised in an impoverished environment |
