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OCR Chapter 6 Biology (AS) > Mitosis > Flashcards

Flashcards in Mitosis Deck (6)
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1
Q

What is mitosis?

A

The division of the Nucleus to produce 2 genetically identical daughter cells.

2
Q

Prophase

A

chromosomes coil and condense.
Nuclear envelope breaks down.
Microtubules form spindle fibres that link opposite poles.
Centrioles move to either pole, attach to centromeres and move chromosomes to centre

3
Q

Metaphase

A

Align along metaphase plate

4
Q

Anaphase

A

Chromosomes are separated to chromatids.

They are pulled to either pole of the cell by the shortening of spindle fibres

5
Q

Telophase

A

Chromatids reach the poles and become chromosomes.

They uncoil, nuclear envelope re forms as does nucleolus.

6
Q

Cytokinesis

A

Division of the cytoplasm.

In animals the cleavage furrows and pinches off.

In plants vesicles align along the metaphase plate, they fuse and form a membrane.