| A | B |
|---|
| interphase | the portion of the cell cycle between divisions |
| replication | the process of copying genetic material |
| sister chromatids | identical copies of each chromosome that result from replication |
| mitosis | a series of phases in cell division during which the nucleus of a cell divides into two new nuclei with identical genetic material |
| cytokinesis | the cytoplasm of the cell divides into two new cells |
| differentiation | the changes that take place in cells as they develop |
| growth factors | chemicals that stimulate the division and differntiation of new cells during growth |
| regeneration | the process of growing back lost body parts |
| asexual reproduction | reproduction in which one parent produces offspring by cell division |
| cancer | the spread of malignant cells to a new location |
| sexual reproduction | when the chromosomes of two parents combine to produce offspring |
| gametes | special reproductive cells |
| meiosis | cellular reproduction that produces gametes |
| haploid | cell with only one complete set of chromsomes |
| fertilization | an egg cell and a sperm cell join to produce a new individual |
| zygote | singele cell that results from fertilization |
| homologous pairs | matching pairs of chromosomes in a diploid cell |
| gene | codes for one trait, or characteristic of an organism |
| crossing over | exchange of gens between pairs of homologous chromosomes |
| evolution | the process of change in living organims over time |
| variation | differnces among members of a population |
