The stage of the cell cycle following G2

MITOSIMITOSISS

In order for the nucleus to divide, the cell must follow some very special steps:P prophaseM metaphaseA anaphaseT telophase

THE PURPOSE OF MITOSIS IS TO DIVIDE THE CELL’S NUCLEUS

The nuclear membrane will disintegrate

The nucleolus disappears

Chromosomes condense

The spindle apparatus begins to form

PROPHASE

The chromosomes attach to the spindle apparatus and align along the equator of the cell.

METAPHASE

The microtubules shorten and pull sister chromatids to opposite poles of the cell

ANAPHASE

The chromosomes reach the poles of the cell

The nuclear membranes re-form

The nucleolus reappears

Chromosomes decondense

TELOPHASE

The purpose of cytokinesis is to divide the cell (and it’s cytoplasm). Cytokinesis is not the same for plant and animal cells

CYTOKINESIS FOLLOWS TELOPHASE

In plant cells a CELL PLATE forms that divides the cells.

In animal cells, a cleavage furrow forms at the equator of a cell and pinches downward until the cell divides.

CYTOKINESIS IS DIFFERENT IN A PLANT CELL COMPARED TO AN ANIMAL CELL.

WHAT CAN WE DO TO REMEMBER THOSE STEPS?

1. During what stage of mitosis does the nuclear membrane begin to disappear?

2. During what stage of mitosis do the chromosomes line up at the cell’s equator?

3. What is/are the product(s) of mitosis?4. What stage of mitosis do you see below?

DID YOU GET IT?

http://www.johnkyrk.com/mitosis.html

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