| A | B |
|---|
| mitosis | process by which a nuclus divides producing two new nuclei with the same number of chromosomes as in the original nucleus |
| Chromosome | a long strand of DNA wrapped in a protine |
| Chromatid | two identical DNA sequences formed from DNA replication that are linked together by a centromere |
| Interphase | state in which the cell carries on its normal functions |
| Chromatin | chromosomes are in a tangled mass called |
| Prophase | DNA condense showing visible sets of chromatids and the nuclear membrane didappears |
| metaphase | chromatid sets line up along middle of cell and become attached to spindle fibers |
| anaphase | centromeres divide freeing chromatids as individual chromosomes which then more to opposite poles of the cell |
| telophase | chromosomes uncoil and become chromation nuclear membranes reappear and nclei form |
| mitosis is | asexual reproduction |
| plant mitosis | plants have no centrioles |
| Telomeres | regions of specialized DNA used to control and regulate cell devision |
| 100 base pairs | of human chromosomes are lost during mitosis |
| immortal | some cells are |
| immortal cells are | embryonic stem, unicellular eularyotes, some cancer cells |
| telomerase | immortal cells contain the enzyme |
| homologus chromosomes | functionaly equal chromosomes |
| Diploid | having a complete set of chromosomes (2n) |
| haploid | having one half a set of chromosomes (n) |
| gametes | haploid sex cells (egg sperm) |
| Prophase 1 | occurs after chromosomes replicatein interphase |
| Metaphase 1 | tetrads line up along the middle of the cell |
| Anaphase 1 | homologus cromatid pairs seperate and move to oppiate poles |
| Telophase | two cells from each cell contaning 1 set of replication crmatid pairs |
| tetrads | two pairs of chromaditds |
