What happens to sister chromatids in meiosis I?
The sister chromatids remain tightly bound together a the centromere. The chiasmata are broken in anaphase I as the microtubules attached to the fused kinetochores pull the homologous chromosomes apart (Figure 4).
Do sister chromatids separate in meiosis 1 or 2?
In meiosis I, homologous chromosomes separate, while in meiosis II, sister chromatids separate. Meiosis II produces 4 haploid daughter cells, whereas Meiosis I produces 2 diploid daughter cells.
What are the 8 stages of meiosis in order?
What are the 8 stages of meiosis?
- prophase I. the chromosomes condense, and the nuclear envelope breaks down.
- Metaphase I. pairs of homologous chromosomes move to the equator of the cell.
- Anaphase I.
- Telophase I and Cytokinesis.
- Prophase II.
- Metaphase II.
- Anaphase II.
- Telophase II and Cytokinesis.
During which phase of meiosis do the sister chromatids separate and head towards opposite poles of the cell?
During metaphase II, all sister chromatids align themselves along the metaphase plate. As anaphase II proceeds sister chromatids are separated and are pulled toward the pole to which they are attached.
What causes Turner syndrome meiosis?
Turner syndrome is caused by partial or complete loss (monosomy) of the second sex chromosome. Chromosomes are found in the nucleus of all body cells. They carry the genetic characteristics of each individual and they come in pairs.