Mitosis - Prophase, Metaphase, Anaphase, Telophase?
Hi, I'm studying for a biology test and forgot my book :-(
What happens in each of those stages of mitosis (Prophase, metaphase, anaphase, telophase)? Can you describe what changes take place? I'm in 9th grade biology if that helps. 
Thanks!
Comments
Prophase- the chromosomes begin to become more defined and become pairs joined at the centromere
Metaphase- The Chromosome pairs begin to line up, and there is no longer a nucleus surrounding them.
Anaphase- The chromosome pairs begin to split, as the centrosomes pull them towards their appropriate side (much like a magnet) along their attached microtubules.
Telophase- The cell begins to show signs of splitting, a cleavage furrow is present (indent where split of cytoplasm, or "cytokinesis" will later occur) and the chromosomes begin to return to their original less defined shape. The nucleus begins to form once again in each of the two daughter cells.
Hope I helped. -Fig
P.S Whenever I had biology tests my freshman year of college, I found visual aids to be helpful and easier to remember. http://www.youtube.com/watch?v=Ru8zC_JRyTI&feature...
Prophase - genetic material has been replicated; chromatin condenses into the tightly packed chromosomes
Metaphase - chromosomes align in the middle of the cell (equatorial plate)
Anaphase - sister chromatids separate at the centromere (each copy of the chromesome splits)
Telophase - spindle fibers continue pulling chromosomes towards poles, and the cytoplasm divides; chromosomes began to unravel back into chromatin
Hope this helps!
Prophase- Chromosomes condense into short rods. Nuclear envelope breaks open. Spindle fibers start to line up.
Metaphase- hromomses attach to spindle fibers. They line up in the middle of the cell.
Anaphase- Chromosomes are pulled apart. Each chromosome separates from its identical copy.
Telophase- Nuclear envelope surrounds each set of the chromosomes. Each side of the cell has a complete set of chromosomes.
actually not to confuse you further but its both. the only diff is meiosis goes through it twice. mitosis is asexual reproduction, happens in the somatic cells. meiosis is sexual reproduction, happens in the sperm and egg cells. interphase-cell looks normal but it is doubling the genetic material. prophase- genetic material is condensing and the nucleus' wall is starting to break up. metaphase- genetic material is getting ready to split. anaphase-the cell will elongate and the genetic material is starting to split. telophase- the cell is just about to split . it has evenly divided its doubled genetic material on opposite sides and almost looks like a number 8. so meiosis goes through this 2times and ends up with 4 daughter cells each with 1 copy of chromasomes. meitosis goes through 1time and ends up with 2 daughter cells each with 2 copies of chromasomes.