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Heredity 8th Grade
basic vocab for 8th grade Ohio
| Question | Answer |
|---|---|
| the passing of physical characteristics from parents to offspring | heredity |
| the scientific study of heredity | genetics |
| the pattern of heredity in which the dominant allele completely covers up the recessive allele | complete dominance |
| a specific characteristic of an organism | trait |
| factors that control a trait | genes |
| the different forms of a gene | alleles |
| When this allele is present, it is always expressed in the organism. | dominant allele |
| This allele is hidden whenever the dominant allele is present. | recessive allele |
| This organism has two different alleles for a trait (heterozygous) | hybrid |
| This organism has two of the same alleles for a trait (homozygous) | purebred |
| the pattern of heredity in which neither allele is recessive & the phenotypes of both alleles are expressed equally in the organism | codominance |
| the father of genetics | Gregor Mendel |
| describes the genotype of an organism that has two identical alleles for a trait (purebred) | homozygous |
| describes the genotype of an organism that has two different alleles for a trait (hybrid) | heterozygous |
| an organism's genetic makeup or alleles | genotype |
| an organism's physical appearance | phenotype |
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