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Mitosis: Cell Division. Cell Division - process by which a cell splits into two identical daughter cells Occurs in two main phase: . Interphase – cell copies DNA and prepares for division Mitosis – chromosomes separate into two new cells. What are chromosomes?.

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Mitosis: Cell Division

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Mitosis cell division

Mitosis: Cell Division


Mitosis cell division

Cell Division - process by which a cell splits into two identical daughter cells

Occurs in two main phase: 

Interphase – cell copies DNA and prepares for division

Mitosis – chromosomes separate into two new cells


Mitosis cell division

What are chromosomes?

  • DNA containing cell’s genetic code

  • Each chromosome has a matching pair (homologous)

  • During interphase, each chromosome copies itself


Mitosis cell division

Life Cycle of the Cell

  • Mitosis = nuclear division

  • Mitosis is followed by cytokinesis (cell division)

  • The steps of mitosis ensure that each new cell has the exact same number of chromosomes as the original

  • Interphase = growth phase, differentiation occurs


The cell cycle

The Cell Cycle

Interphase  (longest phase)

G1 - first growth (gap) phase

Synthesis - DNA makes a copy

G2 - second growth (gap) phase, preparing for mitosis

Mitosis - nucleus divides, ensuring each new cell has the exact number of chromosomes as parent


Mitosis cell division

  • Interphase • Prophase • Metaphase • Anaphase • Telophase

  • IPMAT


Mitosis cell division

1. chromosomes visible (chromatids)

2. centrioles migrate to the poles

3. nuclear membrane disappears

4. nucleolus disappears

5. spindle forms


Mitosis cell division

1. chromosomes line up on the equator, spindle attaches


Mitosis cell division

1. chromatids separate and move to opposite poles


Mitosis cell division

1. chromosomes disappear • chromatin

2. nuclear membrane reforms

3. nucleoli reappears

4. spindle disappears

5. centrioles duplicate


Mitosis cell division

- division of the cytoplasm to form 2 new daughter cells

- organelles are divided

- daughter cells are genetically identical

Cells return to interphase


Mitosis cell division

  • Name the phases starting at the top.


Mitosis cell division

  • Name the phase

  • Identify X

  • Identify Y


Mitosis cell division

5. Name the phase


Mitosis cell division

6. Name the phase


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