click below
click below
Normal Size Small Size show me how
Genetics
Genetics & DNA
Question | Answer |
---|---|
Genetics | The study of heredity |
Trait | Characteristic |
Inherited Trait | Trait that is passed from parents to offspring & inherited traits are controlled by genes |
Heredity | Passing of traits from parents to offspring |
Chromosome | Cell parts that determine what traits a living thing will have . organisms receive chromosomes from their parents |
DNA | Deoxyribonucleic acid . large molecule contained in chromosomes |
Genes | Parts of a chromosome that control inherited traits |
Dominant Gene | Gene whose trait always shows itself |
Recessive Gene | Gene of a trait that is hidden when the dominant gene is present |
gene of a trait that is hidden when the dominant gene is present | Having two like genes for the same trait |
Heterozygous | Having two unlike genes for the same trait |
Punnett Square | A chart that shows possible gene combinations |
Incomplete Dominance | The alleles of both parents are blended |
Codominance | Both alleles of a gene are shown |
Gene Splicing | Moving a DNA section from genes of one organism to genes of another organism |
Inbreeding | Mating closely related organisms |
Genetic Engineering | Methods used by scientists to produce new forms of DNA |
Hybridization | Crossing two different kinds of organisms |
Controlled Breeding | Crossing organisms to produce offspring with desirable traits |
Mutation | A change in a gene |
Gamete | A reproductive cell |