| A | B |
|---|
| chromatin | a complex of DNA and protein in eukaryotic organisms |
| chromosomes | tightly compacted bodies of DNA and protein |
| karyotype | a set of chromosomes |
| diploid | when a human cell contains 23 pairs of chromosomes |
| haploid | cells which contain only one copy of each chromosome |
| sex chromosomes | The chromosomes which are designated as X and Y |
| bacteria cells | they simply split into two cells after the genetic information is copied |
| 46 | the number of chromosomes a human cell typically has |
| mitosis | the process by which the nucleus of a eukaryotic cell divides to form two nuclei |
| cytokinesis | also known as cell division |
| growing | most of the life of a cell is spent doing this |
| DNA replication | the first stage of mitosis |
| cell cycle | the cycle of growth and division in a cell |
| three | the number of distinct stages of interphase |
| tumor | this results when a cell grows and divides without restraint |
| cancer | the disease caused by uncontrolled cell division and growth |
| mutation | the change in a gene |
| gametes | reproductive cells |
| meiosis | a two-stage form of nuclear division in which the chromosome number is halved |
| crossing-over | the exchange of corresponding segments of DNA |
