Cell Division. 4 day old mouse cells. Section 1 Vocabulary. 1. Cell cycle 2. Interphase 3. Mitosis 4. Cytokinesis 5. Chromosome 6. Chromatin. Cells are small! But why?.
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When the cell reaches its size limit it will stop growing or it will divide!
to grow, replace worn-out or damaged cells, or
Normal cell day to day life of a cell!!
-interphase = when the cell grows, carries out cellular functions and replicates its DNA to prepare for the division phase! Or the period between cell divisions. It is the longest of the phases!
The black star represents the centromere that connects the two sister chromatids
1. nuclear membrane dissolves2. Identical chromosome pairs are attached, into "sisters chromatids", which are attached to each other by a centromere3. In animal cells, centrioles migrate to opposite ends of cell (poles)4. Spindle fibers form between poles to attach to chromatids
The cell cycle in eukaryotes is controlled by many proteins. Control occurs at three principal checkpoints