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multiple alleles |
three or more forms of a gene that code for a single trait |
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Carrier |
a person who has one recessive allele for a trait and one dominent allele, but does not have the trait |
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Sex-linked gene |
a gene that is carried on a x or y chromosome |
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Pedigree |
a chart or "family tree" that tracks which members of a family have a particular trait |
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Genetic disorder |
an abnormal condition that a person inherits through genes or chromosomes |
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Amniocentesis |
a technique by which a small amount of fluid that surrounds a developing baby is removed, they do this to tell if the baby will have a genetic disorder |
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Karyotype |
a picture of all the chromosome in a cell aranged in pairs |
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Selective breeding |
the process of selecting a few organisms whith disied traits to serve as parents for the next generation |
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Inbreeding |
a selective breeding method in which two individuals whith identical or similar sets of alleles are crossed |
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Hybridzation |
a selective breeding method in which two geneticlly different individuals are crossed |
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Clone |
an organism that is genetically identical to the organism from which it was produced |
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Genetic engineering |
the transfer of a gene from the DNA of one organism into another organism, in order to produce an organism whith disired traits |
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Gene theropy |
the insertion of working copies of a gene into the cells of a person whith a genetic disorder in an attempt to correct the disorder |
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genome |
all of the DNA in one cell of an organism |
