Mitosis and Meiosis Flashcards
Number of divisions
Mitosis: 1
Meiosis:2
Number of cells at the end
Mitosis: 2
Meiosis:4
Chromosome count
Mitosis: Same
Meiosis: half
Steps
Mitosis:Prophase, Metaphase, Anaphase, Telophase.
Meiosis: (Meiosis 1) Prophase I, Metaphase I, Anaphase I, Telophase I; (Meiosis 2) Prophase II, Metaphase II, Anaphase II and Telophase II.
What does it create
Mitosis: Makes everything but sex cells
Meiosis: Only sex cells
Type of reproduction
Mitosis: Asexual
Meiosis: Sexual
What is prophase ( Mitosis )
Prophase occupies over half of mitosis. The nuclear membrane breaks down to form a number of small vesicles and the nucleolus disintegrates.
What is prometaphase (Mitosis)
The chromosomes, led by their centromeres, migrate to the equatorial plane in the mid-line of the cell - at right-angles to the axis formed by the centrosomes.
Metaphase (Mitosis)
The chromosomes align themselves
Anaphase ( Mitosis )
The centromeres divide, and the sister chromatids of each chromosome are pulled apart -
Telophase ( Mitosis )
The final stage of mitosis, and a reversal of many of the processes observed during prophase. The nuclear membrane reforms around the chromosomes grouped at either pole of the cell, the chromosomes uncoil and become diffuse, and the spindle fibres disappear.
Cytokinisis ( Mitosis )
The final stage in Mitosis where there are two separate cells
Prophase 1 ( Meiosis)
The homologous chromosomes pair and exchange DNA to form separated chromosomes
Prometaphase 1 (Meiosis)
Spindle apparatus formed, and chromosomes attached to spindle fibres
Metaphase 1 (Meiosis)
Chromosones arranged as doubles.