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Meiosis (Interphase (Chromosomes duplicate into two sister chromatids and…
Meiosis
Interphase
Chromosomes duplicate into two sister chromatids and thicken and shorten
Prophase 1
Chromosomes coil up and homologous pairs line up
Synapsis
is the whole thing. They cross over and the place they link is called the chiasma
Tetrads:
Becasuse their are four chromatids
Homologous
Homologue
s are not identical twins. They are just chromosomes that have the
same length
and the
same order of genes
but with
different alles
This is why the alles can cross over. Because they are right next to each other. This crossing over gives rise to v
ariation
Metaphase 1
The chromosomes line up at the equator. They can arrange themselves in 2^n different ways. This provides variation
Independent assortment!
Anaphase 1
These pairs split up
1 more item...
The chromosomes duplicate
germ cells
diploid sex cells