| A | B |
|---|
| Heredity | The passing on of characteristics from parents to offspring |
| Genetics | The branch of biology that studies heredity. |
| Traits | Characteristics that are inherited. |
| Dominant | The trait that is observed,opposite of recessive. |
| Recessive | The trait that seems to disappear. |
| Phenotype | The way an organism looks. |
| Genotype | The gene combination of an organism, type of genes. |
| Homozygous | Two genes for the trait are the same, RR. |
| Heterozygous | Two genes for the trait are different, Rr. |
| Punnett square | The probability of four offspring characteristic |
| Gregor Mendel | Father of Genetics |
| ATGC | Genetic alphabet |
| Gene | a chain of nucleotides or DNA |
| Nucleotides | phosphorus,sugar and either ATG or C |
| Chromosomes | There are 23 pair in humans and they are made of genes |
| Genome | all of the genetic information that an individual inherits |
| Double helix | shape of DNA |
