Which steps occur in each phase of Meiosis and Mitosis MITOSIS 1. In mitosis am I correct in saying that the spindles attach to the centromeres at the end of prophase/prometaphase? (I read this in an answer to another question) MEIOSIS 1. Does the nuclear envelope disintegrate during prophase (as occurs in mitosis), or during metaphase? (this is what it says on my textbook) 2. When do the spindles attach to the chromosomes during the first phase? (during prophase I, or anaphase I? On my textbook it says anaphase I) 3. And when do they attach to the sister chromatids in phase II? (on my textbook it says metaphase II).

Mitosis: 1\. Yes, the spindle fibers attach to centromeres at the prometaphase

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Meiosis: 1\. The nuclear membrane breaks down in Metaphase 1 and reforms during Telophase. It breaks down again in Prophase 2, reforming after that in Telophase 2 in the daughter cells.

2. The spindles attach to the centromere is Metaphase 1

3. Yes the spindles attach to the sister chromatids in Metaphase 2




Check out this animation, it might be pretty useful