Page 9: Another Metaphase I and Anaphase I


The metaphase I/anaphase I transition is shown in this pair of images of meiosis in Ornithogalum (n=3). The top image is of metaphase I showing one telocentric bivalent (large arrows point to the centromeres) just beginning to pull apart.

The bottom image is of very early anaphase I and shows the centromeres (large arrows) further toward the poles as well as the two chromatid arms (small arrows) of the telocentric chromosomes.