| Front | What happens in meiosis? |
|---|---|
| Back | - homologous chromosomes pair up to form bivalents - crossing over occurs - chiasmata form causing alleles to be exchanged between chromatids - new combinations of alleles in chromatids - bivalents align at equator - chromosomes in bivalent pulled to opposite poles by spindle fibre contractions - two haploid cells form - each chromosome has 2 sister chromatids - chromosomes align at equator - sister chromatids pulled to opposite poles by spindle fibre contractions - four haploid cells form |
Tags: genetics
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