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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 |