| A | B |
|---|
| heredity | the passing on of traits from parent of offspring |
| genetics | the study of heredity |
| chromosome | 46 in humans, 23 pairs, where DNA is located |
| gene | part of DNA which carries specific information - a particular trait like eye color |
| allele | determines whether a gene will carry the dominate or recessive trait |
| dominate allele | the trait the is most often seen or exhibitied expressed by a capital letter only need one Captial letter to exhibite the dominate trait ( brown eyes) |
| recessive allele | the trait that is least seen or exhibited. Expressed by lower case letter. Need to have two copies to exhibet the trait (blue eyes) |
| homozygous | same type of alleles, either two capital letters or two lower case letters |
| homozygous dominate | Two dominate alleles, two capital letters, TT |
| homozygous recessive | two recessive alleles, two lower case letters, tt |
| heterozyous | different typs of allele, one dominate one recessive expressed by one capital letter and one lower case letter Tt will exhibit the dominate trait |
| phenotype | What you look like on the outside, what the world sees |
| genotype | what is in your genes, not visible, |
