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We have three 6th grade Science classes and two 8th grade Science classes blogging here from the Pacific Northwest in Chimacum, WA! Sixth graders are learning a bit about Mt Saint Helens, environmental science through fresh water ecology, and physical science this year. Eighth graders are learning about life science this year. Please join us as we learn Science by exploring our world.
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teacher: Alfonso Gonzalez

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Summary of the Phases of Mitosis Mitosis produces two daughter cells that are identical to the parent cell. If the parent cell is haploid (N), then the daughter cells will be haploid. If the parent cell is diploid, the daughter cells will also be diploid. This type of cell division allows multicellular organisms to grow and repair damaged tissue.
1. Interphase
-Chromosomes are not visible because they are uncoiled

2. Prophase
-The chromosomes coil.
-The nuclear membrane disintegrates.
-Spindle fibers (microtubles) form.
-The drawing shows a cell with 8 chromosomes. Each chromosome has 2 chromatids for a total of 16 chromatids.

3. Metaphase
-The chromosomes become aligned.
-The drawing shows a cell with 8 chromosomes. Each chromosome has 2 chromatids for a total of 16 chromatids.

4. Anaphase
-The chromatids separate; the number of chromosomes doubles.
-The drawing shows a cell with 16 chromosomes. Each chromosome has 1 chromatid for a total of 16 chromatids.

5. Telophase
-The cell divides into two.
-The chromosomes uncoil.
-The nucleus reforms.
-The spindle apparataus disassembles.
-The drawing shows a cell with 16 chromosomes. Each chromosome has 1 chromatid for a total of 16 chromatids.

6. G1 Interphase
-The chromosomes have one chromatid.
-The drawing shows two cells. Each cell has 8 chromosomes. Each chromosome has 1 chromatid for a total of 8 chromatids per cell.

7. G2 Interphase
-The chromosomes have two chromatids each.
-The drawing shows two cells. Each cell has 8 chromosomes. Each chromosome has 2 chromatids for a total of 16 chromatids per cell.

Article posted February 6, 2012 at 02:20 PM • comment • Reads 716 • Return to Blog List

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