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| threADLIke bodies present in pairs of all body cells. humans have 46 per cell. |
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| likely to pro abnomralit in brn |
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Term
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Definition
| have 3 no.21 chromosome instead of just 2. |
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Definition
| are arranged linealry along the chromosomes, each of which occupies its own postiion or locus. |
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Definition
| position of gene on chromosome |
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| complete set of human genes. |
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Definition
| double helix., permit reproduciton of info |
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Term
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Definition
| % of cases which if a specific geen is present, a trait or a characterisitic will manifest itself into an orgnanism |
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Term
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| degree to which a particular characteristic is affected by genetic influences. also depends on environmentla influences. |
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Term
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Definition
study of the distribution of genes in groups of people who mate with each other.
eg. Tay Sachs (jews fr. europe, retardation) |
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Definition
| sutdy of effects of genetic inherit. on behaviour |
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Definition
| all DNA posessed by an ind. |
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Definition
| the genetic constitution of an organism, the actual gentic makeup determined at conception. |
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| slight variant of the same gene in a given species, half or more genes exist in multiple forms,. the particular combo of genes and allels of genes present in agiven individual's genome is that indiidual's genome is that indivisual's genotype. |
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Definition
| a protion of DNA that contians the ingo for the creation of proteins that carry out specific tasks. proteins are the basic chemicals that make up the structure of cells and direct their activities. |
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| relationship bet twins or other family |
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