| A | B |
|---|
| genotype | genetic makeup of an organism |
| chromosome theory | Genes are carried from parents to children on chromosomes. |
| probability | possibility that an event may or may not happen |
| meiosis | process that results in cells with only half the normal number of chromosomes |
| chromosome | rod-shaped structure in the nucleus that controls the way traits of a cell are passed on to new cells |
| Punnett Square | a chart that shows possible combinations of the cross between 2 organisms |
| phenotype | characteristic of an organism that you can see |
| zygote | a fertilized egg that grows into an organism |
| sex chromosomes | XX chromosome - female; XY chromosome - male |
| mutation | sudden change in genes or chromosomes, that causes a new trait |
