| A | B |
| Who is the father of genetics | Gregor Mendel |
| Study of how genes are passed on | Genetics |
| Traits we inherit | genes |
| Different forms of a gene or trait | allele |
| Two like alleles or two of the same form of a gene ex: RR or Rr | purebred |
| the allele that is always SEEN when the allele is present | dominant allele |
| allele that is masked or hidden | recessive allele |
| In order for a recessive trait to show up the organism must have | two or both of the recessive allele |
| When there is a dominant and a recessive allele (Rr) which shows up? | Dominant |
| Dominant alleles are written with _________ letters | capital |
| Recessive alleles are written with __________ letters | lower case |
| Used to predict the offspring's phenotype and genotype | Punnetts Square |
| The gene or LETTER combination (Gg) | Genotype |
| How many alleles are inherited for each trait | 2 |
| having one dominant and one recessive allele (one capital and one lower case letter) | hybrid |
| The physical appearance of an organism. | phenotype |
| Chromosomes of a male | XY |
| Chromosomes of a female | XX |
| Smallest to largest orgainization | DNA-chromosome-nucleus-cell |
| Who determines sex of an offspring? | Male, not the female because they have two Xs and they will always give the X but the male has an X and a Y, so if he gives an X it will be a girl, if he gives a Y it will be a boy |