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10 Cards in this Set
- Front
- Back
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Genetics
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The scientific tudy of heredity
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Heredity
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the passing of genetic traits from parent to offspring
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Trait
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a physical charecteristic, such as hair color a trait can be determined by: one gene, many genes, or the enviorment
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Genes
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the inherited bits of info that are passed directly from the parents cells to the childds cells
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Genome
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a set of all the genes a species has on its chromosones. the human genome consists of 50000 to 10000 genes
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Chromosomes
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tiny thread-like structures inside each cell. Chromosomes carry the genes
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Alleles
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different forms of the ame gene
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Dominant
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a gene or allel that is expressed in the phenotype. dominant genes mask or hide recessive genes
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Recessive
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an allele or gene that is not expresed in the phenotype because it is hidden by the dominant gene. in order for the trait to be expresed, there must be 2 copie of the allele
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Who is Gregor, Mendel
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father of modern genetics
he was one of the fisrst people to study patterns of heredity scientifically He used pea plants in his reaserch;he discovered how genetic "factors" were passed down |
