| A | B |
|---|
| heredity | The passing of traits from parents to offspring. |
| trait | A characteristic that an organism can pass on to its offspring through its genes. |
| genetics | The scientific study of heredity. |
| cell cycle | The regular sequence of growth and reproduction for cells |
| purebred | The offspring of many generations that have the same traits. |
| gene | The set of information that controls a trait; a segment of DNA on a chromosome that codes for a specific trait. |
| alleles | The different forms of a gene. |
| osmosis | The diffusion of water molecules |
| recessive allele | An allele that is masked when a dominant allele is present. |
| hybrid | An organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait. |
| probability | A number that describes how likely it is that an event will occur. |
| Hooke | Looked at dead cork cells, gave cells their name |
| phenotype | An organism's physical appearance, or visible traits. |
| genotype | An organism's genetic make-up, or allele combinations. |
| homozygous | Having two identical alleles for a trait. |
| heterozygous | Having two different alleles for as trait. |
| tumor | A mass of abnormal cells |
| mutation | A change in DNA |
| mitochondria | Creates energy for a cell |
| chloroplast | Uses the suns energy to make food for a plant |
| passive transport | Does not require energy to move molecules |
| active transport | Move molecules from low to high concentrations |
| diaphram | Controls the amount of light on a microscope |
| cell membranes | Selectively permeable membrane |
| chemotherapy | A way to treat cancer |
