| A | B |
| dominant trait | represented with a capital letter - a stronger gene |
| recessive trait | represented by a lower case letter - a weaker gene |
| genotype | the genes inherited - example: BB,Bb,bb |
| phenotype | how inherited genes look - example, blue eyes |
| probability | the mathematical chance an event will occur |
| heterozygous or hybrid | two different genes - Bb |
| homozygous or purebred | two of the same genes - BB or bb |
| offspring | children |
| chromosomes | found in the nucleus and contain DNA |
| Gregor Mendel | a monk from Austria that studied genetics using pea plants |
| Reginald Punnett | created a method to predict proability in genetics |
| alleles | choices for a trait |
| sexual reproduction | two parents - DNA is 50% like mom and 50% like dad |
| asexual reproduction | one parent - DNA is 100% like the parent |
| xx | chromosomes for a girl |
| xy | chromsomes for a boy |
| DNA | a molecule shaped like a twisted ladder that contains genetic information |
| A | always pairs with T |
| C | always pairs with G |
| mutation | a mistake in DNA |
| clone | an exact genetic copy of an organism |
| Rosalind Franklin | took the first picture of DNA using an xray |
| Watson & Crick | made the first model of DNA |