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Meiosis is a two-part cell division process in organisms that sexually reproduce, which results in gametes with one half the number of chromosomes of the parent cell. In some respects, it is very similar to the process of mitosis, yet it is also fundamentally different in other respects. Let's look at an overview of the meiotic process.
Meiosis
Meiosis is divided into two parts: meiosis I and meiosis II. At the end of the meiotic process, there are four daughter cells rather than the two produced at the end of the mitotic process. Each of the resulting daughter cells has one half of the number of chromosomes as the parent cell.
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Meiosis I
Meiosis I encompasses four stages:
- Prophase I
- Metaphase I
- Anaphase I
- Telophase I
The stages are similar to the stages in mitosis but the largest differences occur in prophase I. In most cases, at the end of meiosis I, two daughter cells are produced.
Meiosis II
Meiosis II also encompasses four stages:
- Prophase II
- Metaphase II
- Anaphase II
- Telophase II
At the end of meiosis II, four daughter cells are produced. Each of these resulting daughter cells is haploid.
Next page > Prophase I and Metaphase I
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