Summary+of+The+Cell

SUMMARY: When the nucleus divides into two identical daughter cells.
===PHASES: 1. Prophase- DNA molecules in the nucleus begin to condense to form chromosomes. 2. Metaphase- Spindle fibers attatch to centromeres of the chromosomes. 3. Anaphase- Spindle fibers shoorten and sister chromatids seperate. 4. Telophase- Chromosomes reach the poles of their spindles and uncoils after the nuclear envelope reforms. Cytokenesis- Daughter cells split apart.===

SUMMARY: Parent cell divides into four daughter cells esach of them having half of the parent's genes. How gametes form
===PHASES: Meiosis 1 Prophase: Chromatin condenses into chromosomes and spindle apparatus appears. Metaphase: Chromosomes attatch to spindle apparatus, independant assortment. Anaphase: Chromosomes are pulled to the sides of the cell. Cytokenesis: Cell forms two seperate haploid cells. Meiosis 2 Prophase: Nuclear membrane disintegrates and spindle apparatus occurs after chromatin condenses. Metaphase: Chromosomes attatch to the spindle in their centromere. Anaphase: chromosomes split into V shapes and are pulled to different ends of the cell. Telophase: Nuclear membranes are formed around each set of chromosomes. Cytokenesis: Cell seperates into two.===