| A | B |
|---|
| Heredity | passing traits from parent to child |
| Genetics | study of inheritance |
| Gene | unit of genetic material that determines a trait |
| Dominant gene | strong form of a gene expressed even if recessive form is present |
| Recessive gene | weak form of a gene not expressed if dominant form is present |
| Phenotype | physical trait that an organism shows |
| Genotype | gene combination that determines phenotype |
| Hybrid | genotype combination that is a combination of two different alleles for same gene |
| Gamete | one of the sex cells that combines with another to form a zygote |
| Incomplete Dominance | condition where genes produce a trait somewhere in between the traits of the parents |
| Meiosis | cell division that produces gametes with one set of unpaired chromosomes |
| X Chromosome | Longer sex chromosome - females have two X chromosomes |
| Y Chromosome | Shorter sex chromosome - males have one X and one Y chromosome |
| Replication | copying process in which new DNA is created |
| Mutation | A change in DNA or chromosomes |
