| A | B |
| heredity | The passing of traits from generation to another |
| trait | A characteristic that an organism can pass on to its offspring through its genes. |
| genetics | The scientific study of heredity. |
| inherited traits | characteristics of an organism that are passed from parent to off spring |
| purebred | The offspring of many gener tions that have the same traits. TT,tt |
| gene | the basic cellular unit of heredity |
| alleles | Different forms of a gene |
| dominant allele | the stronger trait in genetics, masks the recessive trait in a chromosome pair |
| recessive allele | the weaker trait in genetics, it is fully or partically masked in a chromosome pair |
| hybrid | An organism that has two different alleles for a trait; Tt |
| chromosomes | structures found in the nucleus of a cell that contains genetic information |
| Punnett square | A chart that shows all the possible combinations of alleles that can result from a genetic cross. |
| phenotype | An organism's physical appearance, or visible traits. |
| genotype | a set of genes carried by the organism |
| homozygous | Having two identical alleles for a trait. |
| heterozygous | Having two different alleles for as trait. |
| probalility | the likely hood of a certain outcome expressed as a probablity |
| meiosis | The process that occurs in the formation of sex cells (sperm and egg) by which the number of chromosomes is reduced by half. |
| monohybrid | the inheritance of a single characteristic |
| aquired traits | any characteristics or behavior that is not genetic/inherited is said to the result of enviromental factors, temperature, diet, disease, ect... |
| haploid | cell contain only a single set of chromosomes = single set of genes |
| diploid | contain both sets of homologus chromosomew |
| probality | likli hood particular event will occur |