| A | B |
|---|
| sexual reproduction | a mother and father cells that produces an offspring |
| gene | a specific location on a chromosome and codes for a particular product |
| heredity | passing of genes from parents to offspring(children) |
| alleles | various forms of the same gene |
| phenotype | characteristics that you can see |
| genotype | genes an organism has, maybe can’t be seen with your eye |
| dominant | the allele that determines the phenotype of an individual organism when tow different copies are present in the genotype |
| recessive | is expressed in the phenotype only when two copies of it are present on the homologs |
| punnett square | picture that shows how the parents’ alleles might combine in offspring |
| ratio | compares, or shows the relationship between, two quantities |
| probability | chance |
| percentage | ratio that compares a number to 100 |
| gametes | one chromosome form each pair |
| egg | gamete that forms in the reproductive organs of a female |
| sperm | forms in the reproductive organs of a male |
| fertilization | process that takes place when a sperm and an egg combine to form one new cell |
| Meiosis | cell division that produces haploid cells |
