| A | B |
|---|
| cell cycle | each round of growth and cell division a cell goes through |
chromosomes,  | structures within the cells that undergo division and contain hereditary information |
| chromatin | material from which chromosomes are composed |
| histones | small groups of proteins around which DNA is wrapped to form chromatin |
| centrioles | cylindrical organelles found near the nucleus of animal cells involved in mitosis |
| centromeres | region where two chromatids attach |
| chromatid | one of the two strands of a double chromosome |
| interphase | "resting phase" where chromosomes replicate |
| replicate | copy |
| prophase | stage where chromosomes become visible |
| asters | star-shaped structures formed from microtubules |
| equator | location in a cell, midway between the poles |
| metaphase | stage where chromosomes line up at the equator |
| anaphase | stage where chromosomes are pulled to opposite poles |
| telophase | stage where chromosomes uncoil, and nuclear membrane reforms |
| cytokinesis | division of the cytoplasm |
| cyclin | protein that regulates the cell cycle |
| cancer | cells grow uncontrollably due to a defect in cycle regulation |
| binary fission | parent divides into two equal parts |
| budding | outgrowth which develop on a parent and become a new individual |
| spores | specialized cells released from a parent which germinate to become new individuals |
| regeneration | ability of an organism to regrow lost body parts |
| vegetative reproduction | plant parts such as leaves, seeds and roots give rise to a new plant |
| asexual reproduction | one parent reproduction |
