| A | B |
|---|
| structure found in the cytoplasm | organelle |
| stringlike structure in a cell that carries information controlling all the cell's activities | chromosome |
| process by which a cell produces two new nuclei | mitosis |
| reproduction by one parent | asexual reproduction |
| reproduction by two parents | sexual reproduction |
| type of cell produced by organisms that reproduce sexually | sex cell |
| process by which sex cell form | meiosis |
| the joining of an egg cell an a sperm cell during sexual reproduction | fertilization |
| the first cell of an offspring, formed when an egg cell and a sperm cell join | zygote |
| a characteristic of an organism | trait |
| the process that results in offspring resembling their parents | heredity |
| a unit of a chromosome that controls a trait | gene |
| receive from one's mother or father | inherit |
| a change in the information in a gene | mutation |
| a gene that prevents the expression of another gene | dominant gene |
| a gene whose expression is prevented by a dominant gene | recessive gene |
| an organism with either two dominant or two recessive genes for a trait | purebred |
| an organism with one dominant and one recessive gene for a trait | hybrid |
