meiosis Flashcards
envelope disappears and spindles form
prophase 1
homologous chromosomes pair up forming a tetrad
prophase 1
copied sister chromatid from mom “stands” next to one from dad
prophase 1
non-sister chromosomes exchange information
prophase 1
crossing over
prophase 1
spindles attach to chromosomes
metaphase 1
crossed over chromosomes align randomly
metaphase 1
tetrads line up on either side of metaphase plate
metaphase 1
independent assortment
metaphase 1
spindles pull half of the tetrad to its pole
anaphase 1
homologous chromosomes/ tetrad is seperated
anaphase 1
cytokinesis occurs seperating daughter cells
telophase 1
how many cells after telophase 1
2 haploid cells
after meiosis 1
23 duplicated chromosomes/sister chromatids
sister chromatids randomly line up at metaphase plate
metaphase 2
another independent assortment
metaphase 2
spindles attach
metaphase 2
single chromosomes move to each pole
anaphase 2
cytokinesis occurs in both cells
telophase 2
after telophase 2
4 haploid cells