Cell Division: Mitosis and Meiosis (Midterm 3)

cell prepares to dive Dna is copied

centrosomes migrate to opposite poles, chromosomes begin to condense

chromosomes attatch to spindle, tension created forces them to align in the middle.

chromatids separate at the centromere, the now regular chromosomes are pulled to centrosomes.

chromosomes reach opposite ends of the cells, causing the spindle to dismantle.

cell divides, pinchign conitnues utnil cell separates.

Dna is copied cell prepares to divide

nuclear envelope breaks down spindle forms and centrosomes go to opposite poles, homologus chromosomes find their partners and align form tetrad

pairs of homologus chromsomes are pulled to metaphase plate

homologus chromosomes sepearate ,centromeres of replicated chromosomes do not split, sister chromatids still stay connected

nuclear envelopes reform around chromosomes, DNA partitioned int o each of the 2 daughter cells

DNA goes to each daughter cell, ready for meosis II

following meiosis one genetic materal has been halved but each duplicated chromosome must still be split into final haploid cells.

cell prepares for another round of division, microtubules lengthen again

chromosomes align in the middle

sister chromoatide separate from eachother, move to opposite poles

separated chromosomes each become enclosed in their own nucleas

Separates each cell into daughter cell leaving 4 total cells..