Mitosis

• A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
• Katy Eddy, 11/16.15/ 3rd

Mitosis Vocabulary

• Centromeres- the point on a chromosome by which it is attached to a spindle fiber during cell division.
• Spindle Fibers-Spindle fibers form a protein structure that divides the genetic material in a cell.
• Chromatid-each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
• Chromatin-the material of which the chromosomes of organisms other than bacteria (i.e., eukaryotes) are composed. It consists of protein, RNA, and DNA.

Vocabulary Continued

• Chromosome- threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes
• Centriole-a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division
• Cytokinesis-the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
• Metaphase Plate-an imaginary line that is equidistant from the two centrosome poles.

Reflection

Interphase

• During Interphase, DNA replication occurs but DNA molecules are still protected by the nuclear membrane.

Prophase

• The nuclear membrane is no longer present and the DNA molecules start forming chromosomes.

Metaphase

• The chromosomes line up at the align up at the equatorial plate.

Anaphase

• The centomeres of the chromosomes start to split.

Telophase

• Sister chromatids reach opposite poles. The small nuclear vesicles in the cell begin to reform around the group of chromosomes at each end.

Cytokinesis

• Divides the cytoplasm of a parental cell into two daughter cells, which means restarting the cycle.

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