Originally created by Bob Perry Malibu High School
Originally created by Bob Perry, Malibu High School Modified by John Cary, Malibu High School
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h p o r p e s a h p a t e m anap hase tel op ha se e s a http: //www. biology. arizona. edu/cell_bio/tutorials/cell_cycle/cells 2. html MITOSIS G 2 (Gap 2) 1 M is s e n ki o t y c 2 G 1 (Gap 1) G 0 S-Phase (DNA Self. Replication) THE CELL CYCLE
What is MITOSIS ? THE PROCESS BY WHICH TWO NEW NUCLEII ARE FORMED, PRECEDING CELL DIVISION. http: //fairmanstudios. com/als. htm
PURPOSE OF MITOSIS: TO PRODUCE TWO NEW NUCLEII WITH… - EXACTLY THE SAME KIND and - EXACTLY THE SAME NUMBER. . . OF CHROMOSOMES AS THE PARENT CELL.
http: //www. dartmouth. edu/artsci/bio/cbbc/courses/bio 4 -lectures/the. Cell. html 1 2 CYTOKINESIS MITOSIS is about organizing and distributing CHROMOSOMES
INTERPHASE http: //iccbweb. med. harvard. edu/mitchisonlab/Pages/mt. html
interphase
MI TO SIS Biological Science, a Molecular Approach. BSCS Blue Version. Heath and Company, 1996. INTERPHASE is the normal lifetime of a cell, after being “born” by division, and before it divides itself. INTERPHASE is not a stage of mitosis !
INTERPHASE: Gap 1 MI TO SIS Gap 2 Biological Science, a Molecular Approach. BSCS Blue Version. Heath and Company, 1996. S-phase
nucleolus (if any) still visible INTERPHASE: nuclear envelope clearly visible chromatin, NO chromosomes, yet http: //www. fed. cuhk. edu. hk/~johnson/photomicrographs/mitosis/animal_interphase. htm
INTERPHASE Allium root tip Coregonus blastula
PROPHASE http: //www. itg. uiuc. edu/technology/atlas/structures/mitosis/prophase. htm
PROPHASE J J Nuclear membrane dissolves. Nucleolus disappears. Chromosomes form. Centrioles migrate & form spindle. http: //www. blc. arizona. edu/courses/181 gh/Lectures_WJG. 01/mitosis_F. 01/mitosis. html
PROPHASE nuclear envelope disappears nucleolus disappears http: //www. ac-dijon. fr/pedago/svt/documents/mitose/prophase. gif chromosomes become visible
PROPHASE Allium root tip Coregonus blastula
METAPHASE http: //iccbweb. med. harvard. edu/mitchisonlab/Pages/mt. html
METAPHASE chromatids spindle centriole http: //www. chembio. uoguelph. ca/educmat/chm 736/cycletx. htm J chromatids line up on the equator.
METAPHASE TWO IDENTICAL COPIES OF ONE CHROMOSOME. THIS CHROMATID WILL SOON MOVE TO NORTH POLE THIS CHROMATID WILL SOON MOVE TO SOUTH POLE http: //genenlab. spoono. com/gnu/mandm. shtml
chromatids spindle centriole Nature (408. 423, 2000). http: //www. blc. arizona. edu/courses/181 gh/Lectures_WJG. 01/mitosis_F. 01/mitosis. html
METAPHASE Allium root tip Coregonus blastula
ANAPHASE http: //www. univ-orleans. fr/SCIENCES/BIOCHIMIE/MMC/accueil. htm
ANAPHASE J http: //www. blc. arizona. edu/courses/181 gh/Lectures_WJG. 01/mitosis_F. 01/mitosis. html chromatids migrate to each pole.
ANAPHASE early Conly Rieder http: //www. wadsworth. org/BMS/SCBlinks/WEB_MIT 2/HOME. HTM late
ANAPHASE Allium root tip Coregonus blastula
TELOPHASE
http: //www. bmb. psu. edu/courses/bisci 2 /mitosis. htm TELOPHASE J J Chromosomes unwind. Mitotic spindle dissolves. Nuclear membrane forms. New nucleoli form.
TELOPHASE ONE DAUGHTER NUCLEUS FORMS AT NORTH POLE SPINDLE APPARATUS DISSOLVES ONE DAUGHTER NUCLEUS FORMS AT SOUTH POLE
TELOPHASE early late New nuclei form at the poles. Cytokinesis begins. http: //www. blc. arizona. edu/courses/181 gh/Lectures_WJG. 01/mitosis_F. 01/mitosis. html
TELOPHASE Allium root tip Coregonus blastula
THE END ( CAN YOU ACE THIS QUIZ ? )
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