Transcript The Cell Cycle:

The Cell Cycle:
Mitosis Notes
Facts
• _______ cells – “soma” means ______
• Body cells each contain the _____ number of
__________
• How many chromosomes do ______ body
cells have?
___
• Chromosome = cell structure that contains the
______ material in the form of DNA. This is
located ______ the nucleus.
Centromere
Chromatid
Sister Chromatid
• Centromere = cell structure that ____ two
_______ together to form a ______ ______.
• Chromatid = one _____ of the original
chromosome.
• Sister chromatid = _______ halves of the
duplicated parent (________) chromosome
formed during __________.
Interphase
The time ______ the formation of the cell and
the next _________
_________ of genetic material
Produces __________
Assembles __________ needed for mitosis
Phases of Mitosis
Prophase – this is the ______ step of mitosis and it lasts
the ______. Usually 60% of the total time for mitosis.
 Chromosomes coil up into short _____
 ________ and nuclear membrane disappear
 Spindle fibers form between ________
 Centrioles move to _________ ends of the cell
__________ – second phase of mitosis
 Meta = ________
 _______ of chromosomes attach to spindle fibers
 Chromosomes are arranged along the ______ line
of the cell
__________ – third phase of mitosis
Centromeres _________
Chromatids separate and become separate
chromosomes again
Spindle fibers _____ chromosomes apart to
opposite ends of the cell
_______ ______ begins to ______ in the
_________
Telophase – ______ stage of mitosis
Nuclear membrane _____ around ____ set
of chromosomes
Nucleolus and plasma membrane ________
Cytokinesis – the ______ of
_________
Animal cells – plasma membrane _______ in at the
end of ________ and two new ____ separate.
Plant cells – since plant cells have a rigid cell ____,
the plasma membrane can’t just pinch in. So, a
___ ____ forms across the _______ of the cell to
separate the two cells into separate cells.