What happens during prophase 2 in meiosis?
During prophase II, the chromosomes condense, and a new set of spindle fibers forms. The chromosomes begin moving toward the equator of the cell. During metaphase II, the centromeres of the paired chromatids align along the equatorial plate in both cells.
Which represents a step during prophase II?
During prophase II of meiosis II, four important steps occur. These are the condensing of chromatin into chromosomes, disintegration of the nuclear envelope, migration of centrosomes to either pole, and the reconstruction of the spindle apparatus. However, centrosomes are not present in all cells.
What is the prophase II?
During prophase II, chromosomes condense and the nuclear envelope breaks down, if needed. The centrosomes move apart, the spindle forms between them, and the spindle microtubules begin to capture chromosomes. The two sister chromatids of each chromosome are captured by microtubules from opposite spindle poles.
What are the phases of meiosis 2?
There are again four phases in meiosis II: these differ slightly from those in meiosis I.
- Prophase II. Chromatin condenses to form visible chromosomes again.
- Metaphase II. Spindle fibers connect to the kinetochore of each sister chromatid.
- Anaphase II.
- Telophase II.
What does meiosis 2 look like?
In meiosis II, the phases are, again, analogous to mitosis: prophase II, metaphase II, anaphase II, and telophase II (see figure below). As shown in the figure below, meiosis II begins with two haploid (n = 2) cells and ends with four haploid (n = 2) cells.
What does anaphase 2 look like?
During anaphase II, the third step of meiosis II, the sister chromatids of each chromosome separate and move toward opposite poles. As the chromosomes are dragged along by the spindle apparatus, their arms can be seen dragging along behind so that the chromosomes form V-shapes.
What is cytokinesis II?
Telophase II and Cytokinesis Cytokinesis separates the two cells into four unique haploid cells. At this point, the newly formed nuclei are both haploid. An animal cell with a diploid number of four (2n = 4) proceeds through the stages of meiosis to form four haploid daughter cells.
What happens in cytokinesis 2 of meiosis?
Cytokinesis separates the two cells into four unique haploid cells. At this point, the newly formed nuclei are both haploid. An animal cell with a diploid number of four (2n = 4) proceeds through the stages of meiosis to form four haploid daughter cells.