Edited sentence: Each chromosome still contains a pair of sister chromatids.Kinetochore microtubules shorten, severing the recombination nodules and pulling homologous chromosomes apart.Nonkinetochore microtubules lengthen, pushing the centrioles farther apart.Since each chromosome has only one functional unit of a pair of kinetochores, whole chromosomes are pulled toward opposing poles, forming two haploid sets.The cell elongates in preparation for division down the center