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10 Cards in this Set
- Front
- Back
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autosomes
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22 matching pairs of chromosomes
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modifier genes
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enhance or dilute the effects of other genes
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codominance
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pattern of inheritance in which both alleses influence the person's characteristics
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X-linked inheritance
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harmful allel is carried on X chromosome; mostly affects males
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genetic imprinting
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alleles are imprinted, or chemically marked, so that one pair member (either mother's or father's) is activated regardless of its makeup.
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fragile X syndrome
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can cause mental retardation
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polygenic inheritance
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many genes determine characteristics (Ex: not just tall or short, somewhere in the middle; various continuation)
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blastocyst
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hollow, fluid-filled ball formed by cells
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amnion
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membrane that encloses the devloping organism in amniotic fluid
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chorion
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protective membrane which surrounds the amnion
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