Both arrest meiosis and mitosis at metaphase. Both appear in unfertilized eggs, but disappear in fertilized eggs. Both are destroyed in vivo by egg activation and in vitro by Ca 2+ ions.

Mitosis is the complex process in which duplicated chromosomes are condensed, segregated with the help of the mitotic spindle, and packaged in to daughter cell nuclei. Mitosis occurs in five ...

The accurate distribution of chromosomes in an oocyte is essential for the correct transmission of genetic information to the ...

The mature oocyte contains the full complement of maternal proteins required for fertilization, the transition to zygotic transcription, and the beginning stages of embryogenesis. Many of these ...