| Front | Draw out the three stage process of meiosis with one homologous chromosome pair representing all 23, labelling and describing the stages, colour coding the maternal and paternal chromosomes, asssigning a ploidy number to each cell, giving a key that shows how to represent original chromosomes and replicated chromosomes |
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| Back | DNA replication: chromosomes replicate and pair at the centromere to form 23 replicated homologous chromosome pairs independent assortment: the independent mixing of maternal and paternal chromosomes before meiosis I Meiosis I: after the homologous chromosome pairs line up (where genetic variation is caused by the two replicated chromosomes swapping over some DNA), two daughter cells form containing either chromosome from each chromosome pair so there is a random ratio of maternal and paternal chromosomes out of the 23 chromosomes in each cell Meiosis II: the sister chromatids in each chromosome separate so that four haploid gametes are formed each containing one set of each chromosome |
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