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CH 3-1,3-2
Genetics
| Term | Definition |
|---|---|
| heredity | passing of physical characteristics from parents to offspring |
| trait | each specific characteristic |
| genetics | study of heredity |
| purebred | offspring with similar traits produced over many generations |
| gene | factor that controls traits |
| allele | different forms of a gene |
| dominant allele | strongest trait |
| recessive allele | weakest trait |
| hybrid | organism with two different alleles for a trait |
| probability | number that describes how likely it is that an event will occur |
| Punnett square | chart that shows possible combinations of alleles that could occur in the offspring |
| phenotype | physical, visible traits |
| genotype | genetic make up - the alleles |
| homozygous | identical alleles - rr or RR |
| heterozygous | two different alleles - Rr |
| purebred | organism with two of the same alleles for a trait |