A | B |
cell cycle | the cycle of growing and dividing that eukaryotic cells do |
interphase | main stage of cell cycle in which cell grows and copies DNA |
mitosis | main stage of cell cycle where nucleus divides |
cytokinesis | divides the cytoplasm |
chromosomes | condensed DNA |
chromatin | relaxed form of DNA in nucleus |
binary fission | method by which prokaryotic cells divide |
prophase | first stage of mitosis |
metaphase | shortest stage of mitosis |
anaphase | third stage of mitosis |
telophase | final stage of mitosis |
sister chromatids | structures that contain identical copies of DNA |
centromere | structure at center of chromosome where chromatids are attatched |
spindle apparatus | network of spindle fibers, centrioles, and aster fibers |
centriole | bundle of cytoskeleton which forms the "pole" |
motor protein | pull chromatids along spindle fibers |
furrow | wrinkle or pinch where cytoplasm will divide. |
homologous | 2 identical chromosomes |
gamete | sex cell |
stages of mitosis | prophase, metaphase, anaphase and telophase |
how many divisions take place in one cycle of meiosis | 2 |
haploid | sperm or egg cell; 1/2 the full set of chromosomes |
diploid | full set of chromosomes; skin cells |
replication | making a complete copy of the DNA |
what happens during "cross over" | pieces of homologous chromosomes exchange info during prophase 1 |