Identify the steps in meiosis that take a cell from 4n to four 1n gametes.

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23-02-2024
Biology

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Identify the steps in meiosis that take a cell from 4n to four 1n gametes.

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funnyboy999 funnyboy999 · Answer 1 · 2024-02-23T17:32:26+01:00

Explanation:

To go from a cell with 4n (diploid) chromosomes to four 1n (haploid) gametes in meiosis, several steps are involved:

1. **Prophase I**: Homologous chromosomes pair up and exchange genetic material in a process called crossing over. This increases genetic diversity.

2. **Metaphase I**: Paired homologous chromosomes line up along the center of the cell.

3. **Anaphase I**: Homologous chromosomes separate and move to opposite ends of the cell.

4. **Telophase I and Cytokinesis**: The cell divides into two daughter cells, each with half the number of chromosomes but with duplicated chromatids.

5. **Prophase II**: Each of the two daughter cells enters a second round of division without replicating the DNA.

6. **Metaphase II**: Chromosomes line up along the center of the cell.

7. **Anaphase II**: Sister chromatids separate and move to opposite ends of the cell.

8. **Telophase II and Cytokinesis**: The cell divides again, resulting in a total of four daughter cells, each with a haploid set of chromosomes.

Here's your answer:

By following these steps, a cell with 4n chromosomes can undergo meiosis to produce four 1n gametes, each with a unique combination of genetic material due to crossing over during prophase I.

Hope this helps you and you understand.

FB999