Nithout Crossing Over - Meiosis I Microtubules shorten, separating the DNA condenses into homologous homologous chromosomes and pulling the chromosomes; nuclear envelope breaks sister chromatids to the poles; microtubules down; centrioles move to poles. elongate the cell Homologous chromosomes line up in center One set of sister chromatids arrives at each oell; microtubules attach to centromeres of pole; new nuclear envelopes form homologous chromosomes Cell cleaves, creating two daughter cells each with one set of sister chromatids Meiosis II.