Meiosis

1
Meiosis
Reproduction
Makes egg and sperm
Occurs only in reproductive organs
female
male
ovaries
testes
eggs
sperm
2N Diploid
46
Called Reduction Division
1N Haploid
2
Zygote Fert. Egg
46
2N
YOU
Trait 2 genes
3
Homologous Pairs Chromosomes with genes in the
same sequence or order. Does not mean the same
genes, just the same order.
4
During Late Interphase, the chromosomes make a
copy of themselves and are held together by a
centromere.
Homologous Pair
5
Match up the homologous pairs
What is the 1N number of this cell?
What is the 2N number of this cell?
6
Meiosis

4
2N
Late Interphase
Homologous Pairs
1st Metaphase
2nd Metaphase
2
1N
7
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8
Egg
Sperm