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AS unit 3
Term | Definition |
---|---|
cell | the basic unit of life |
chromosome | a strand of genetic material that contains genetic code |
crossbreeding | the breeding of two different pure breeds |
gene | a unit of inheritance composed of DNA |
genetics | the study of heredity |
genotype | genetic makeup of an animal |
heredity | the passing of traits from parents to offspring |
phenotype | the outward expression of a gene |
purebred breeding | the breeding of animals within the same breed |
reproduction | process by which new organisms are derived normally involving the union of the male and female sex cells |