Prophase I Homologous chromosomes pair and form synapses, a step unique to meiosis. Paired chromosomes are called bivalents.
Orientation is random- parental homologues face either direction.
Nuclear envelopes may reform Cell may quickly start second meiotic division Cytokinesis Meiosis 1 movie . Differences due to random assortment of parental chromosomes, and further changes caused by recombination in prophase I. Meiosis 2 movie .