the tetrad split and are pulled apart (the double date ends)

sister chromatids line up at equator

4 haploid cells created

crossing over occurs

spindle fibers created and begin reaching out to sister chromatids

sister chromatids pulled apart at centromere

2 haploid cells created

a human cell containing 22 autosomes (unpaired) and a Y chromosome is

a zygote of a human contains how many chromosomes