Page 52 - Demo 1

The Second Division – Meiosis II: The events of meiosis II are the same
as those for mitosis, except that the cells are haploid. At the start of prophase
II, the spindle appears while both the nuclear envelope and nucleolus
disappear. Each dyad aaches to the spindle. During metaphase II, the dyads
line up at the metaphase plate, with sister chromads facing opposite poles.
During anaphase II, the sister chromads of each dyad separate and move
toward the poles, with both poles receiving the same number and kinds of
chromosomes. At telophase II, the spindle disappears while the nuclear
envelope reforms.

During cytokinesis, the plasma membrane pinches off to produce two
new cells. At the end of meiosis II, there are four haploid daughter cells with
half the number of chromosomes of the parent cell. Addionally, the four
daughter cells are genecally different from each other and the parent cell.

Figure 29. Comparison of Mitosis and Meiosis (2n = 6)
Source: https://swh-826d.kxcdn.com/wp-content/uploads/2016/03/Meiosis-vs-Mitosis.jpg
Crossing-over and Recombinaon in Meiosis

Meiosis not only reduces the number of chromosomes but also shuffles
the genec material between the homologous chromosomes, allowing for
recombinaon. Recombination takes place when two strands of DNA swap

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