| A | B |
|---|
| gene | a portion of DNA that encodes a protein |
| chromosome | a X shaped structure seen in the nucleus that consists of protein and DNA |
| chormatin | protein + DNA |
| histone | a group of proteins that helps the DNA to condense |
| nucleosome | A portion of DNA wrapped around a histone core |
| chromatid | one of the two strands of a chromosome |
| centromere | the constriction of a chromosome that attached to the spindle |
| cell cycle | the cycle of division and resting that a cell goes through |
| interphase | the resting portion of the cell cycle |
| mitosis | a type of cell division that results in identical deiploid copies of the cell |
| cytokinesis | division of the cytoplasm |
| spindle | the structure that forms during cell divisions that helps to move the chromosomes around |
| centrosome | a cell structure that gives rise to the spindle |
| cancer | uncontrolled cell growth |
| tumor | a mass that forms as a result of uncontrolled cell growth |
| gamete | a haploid sex cell |
| zygote | the diploid organism that results from fertilization |
| diploid | containing a full set of chromosomes |
| haploid | containing a half set of chromosomes |
| homologous chromosomes | chromosomes that contain similar types of information |
| meiosis | a type of cell division that results in unique haploid cells |
| crossing over | the exchange of genetic information that happens during prophase I |
| independent assortment | the homologous chromosomes separate from each other during metaphase |
| life cycle | all the events in the growth and development of an organism |
| sperm | the male gamete |
| egg | the female gamete |
