| A | B |
|---|
| Phenotype | Physical traits that are coded by the genotype. |
| Phenotypic ratio | Shows the possible phenotypes of the offspring |
| Hybrid | A mixture of the different parents traits. Another word for heterozygous |
| Purebred | Another word for homozygous. This is when two parents have the same traits. |
| Dominant | The stronger form of the gene whihc will always express itself when it is present |
| Recessive | The weaker form of the trait which will always be prevented from showing if a dominant gene is present. |
| Monohybrid | 1 factor crosses (only looking at one trait like hair color or eye color) |
| Genotype | The combination of alleles (genes) that determine an individuals phenotype |
| Dihybrid | When you cross two traits to look at the possible genotypes/phenotypes of the offspring |
| Allele | One form of the gene/trait |
| Homozygous | Possessing idential alleles for a trait |
| Gene | A section of DNA that codes for proteins which determine your traits |
| Punnett Square | A tool used to predict the outcome of an offspring |
| Genotypic ratio | The ratio that shows the actual genes of the offspring after the cross |
| Heterozygous | Possessing two different alleles for a trait. |
| Law of independent assortement | Different gene pairs assort independently in the formation of gametes |
| Law of segregation | Two members of a gene pair seperate from each other into gametes such that half the gametes carry one member of the pair and half carry the other |
| Multiple Allele problems | These are bloodtype problems |
| Incomplete dominance | Where you will have 3 different phenotypes and the heterozygous phenotype would be a mix of the dominant and recessive traits |
| Co-Dominance | There are two dominant alleles that share traits in the heterozygous form |
