Name_________________
Events during Mitosis
Directions: log onto www.cellsalive.com and on the side bar menue selecgt mitosis. Fill
in the blanks below by reading through the stages and draw each stage on a separate
piece of paper. Color your drawings and attach to this sheet
Interphase: Cells may appear _________during this stage, but they are quite
the _________. This is the_______________period of the complete cell
cycle during which ____________replicates, the _____________divide, and
_____________are actively produced.
Draw Interphase:
Prophase: During this first mitotic stage, the nucleolus_____________and
_________________ condenses into _____________. Each replicated
chromosome comprises two ___________, both with the same genetic
information. Draw
Prophase
Prometaphase: In this stage the ______________________breaks down so
there is no longer a recognizable___________.
Draw Prometaphase:
Metaphase: Tension applied by the spindle fibers aligns all chromosomes in
one plane at the ___________________of the cell.
Draw Metaphase:
Anaphase: Spindle fibers shorten, the kinetochores separate, and
the____________ (daughter chromosomes) are pulled apart and begin
moving to the __________________.
Draw Anaphase:
Telophase: The daughter chromosomes arrive at the poles and the spindle
fibers that have pulled them apart _________________________.
Draw Telophase:
Cytokinesis: The spindle fibers not attached to chromosomes begin breaking
down until only that portion of overlap is left. It is in this region that a
contractile ring cleaves _____________________ into
______________________. Microtubules then reorganize into a new
cytoskeleton for the return to interphase.
Draw Cytokinesis: