cell division

[kea2]

Which phases differ between mitosis and meiosis?

[Poison]

most of the phases differ. have a look at these:

Major differences between mitosis and meiosis.

1. Number of cell divisions and products.
mitosis - one cell division resulting in two daughter cells
meiosis - two cell divisions resulting in four products of meiosis


2. Ploidy (# chromosome sets) per nucleus.
mitosis - 2N to 2N
meiosis - 2N to N to N

3. Synapsis of homologous chromosomes.
mitosis - no pairing
meiosis - pairing at zygotene of prophase I

4. Exchange of genetic material between synapsed homologous chromosomes.
mitosis - does not occur
meiosis - occurs at pachytene of prophase I (first visible at diplotene)

5. Timing of division of centromeres.
mitosis - occurs at anaphase
meiosis - occurs at anaphase II but not at anaphase I

6. Genetic variation.
mitosis - conservative process; does not lead to genetic variation
meiosis - leads to increased genetic variation following recombination (crossing-over)

(From: http://www.mrskingsbioweb.com/meiosis.html )