MEIOSIS. Meiosis. The form of cell division by which gametes, with half the number of chromosomes, are produced. Diploid (2n) haploid (n) Meiosis is sexual reproduction. Meiosis. SEX CELLS divide to produce gametes (sperm or egg) .
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Two divisions (meiosis I and meiosis II).
a. prophase I
b. metaphase I
c. anaphase I
d. telophase I
1. Orientation of homologous pair to poles is random.
3. Formula: 2n
Example: 2n = 4
then n = 2
thus 22 = 4 combinations
How many combinations are there for humans????
n = 23
(or very short - no more DNA replication)
gametes = sperm or egg