hey Heidi! So there are 5 phases in mitosis cycle: interphase, prophase, metaphase, anaphase, and telophase. During interphase, cells grow, their DNA replicates, and prepares for mitosis and organelles & molecules needed for division is produced.(In a picture you'll see the chromatins condensing and the centrioles will be close to each other.) During prophase, nucleolus disappears, spindle fibers form, centrioles move toward opposite sides, and chromosomes tighten when nuclear envelope breaks. Next, during metaphase, you'll see centromeres line up in the center of the cell, and spindle fibers connect centromere to 2 poles of spindle. During anaphase, sister chromatids pull apart, so each chromatid is a chromosome. Lastly, during telophase, you can see nucleous again, and nuclear envelope reforms. (In a picture, it looks like a peanut.) I hope this helps! :]
hey Heidi! So there are 5 phases in mitosis cycle: interphase, prophase, metaphase, anaphase, and telophase. During interphase, cells grow, their DNA replicates, and prepares for mitosis and organelles & molecules needed for division is produced.(In a picture you'll see the chromatins condensing and the centrioles will be close to each other.) During prophase, nucleolus disappears, spindle fibers form, centrioles move toward opposite sides, and chromosomes tighten when nuclear envelope breaks. Next, during metaphase, you'll see centromeres line up in the center of the cell, and spindle fibers connect centromere to 2 poles of spindle. During anaphase, sister chromatids pull apart, so each chromatid is a chromosome. Lastly, during telophase, you can see nucleous again, and nuclear envelope reforms. (In a picture, it looks like a peanut.) I hope this helps! :]
ReplyDeletePROPHASE - chromatin winds up/condenses, nuclear membrane disappears, nucleolus disappears, spindle fibers and centrioles assemble into their places.
ReplyDeleteMETAPHASE - chromosomes line up along the middle of the cell
ANAPHASE - spindle fibers pull centromeres apart separating the chromatids into individual chromosomes.
TELOPHASE - chromosomes unwind back to chromatin, nuclear membrane and nucleolus reappear. Cytokinesis (the actual division of the cell) begins.