Hvor kommer forældercellen i meiose fra?
Homologous chromosome
I anafase I i meiose I trækkes de homologe kromosomer fra hinanden. De homologe kromosomer spaltes af enzymet separase for at frigøre den cohesin, der holdt de homologe kromosomparme sammen. Dette gør det muligt for chiasmata at frigøre sig, og de homologe kromosomer kan bevæge sig til de modsatte poler i cellen. De homologe kromosomer er nu tilfældigt adskilt i to datterceller, der gennemgår meiose II for at producere fire haploide datterkimceller.
Homologous chromosome
In anaphase I of meiosis I the homologous chromosomes are pulled apart from each other. The homologs are cleaved by the enzyme separase to release the cohesin that held the homologous chromosome arms together. This allows the chiasmata to release and the homologs to move to opposite poles of the cell. The homologous chromosomes are now randomly segregated into two daughter cells that will undergo meiosis II to produce four haploid daughter germ cells.
Homologous chromosome