Answer:

The equation 2n=4 implies that the organism in question is diploid (2n) and has 4 chromosomes in total. During meiosis, the chromosome number is halved, so each cell produced after meiosis will be haploid (n) with 2 chromosomes.

Let's break down the stages in meiosis:

**Meiosis 1:**

1. **Prophase 1:** In this stage, homologous chromosomes pair up to form tetrads. Since there are 4 chromosomes in total, there will be 2 tetrads, which means 4 chromatids (2 pairs of sister chromatids) at this stage.

2. **Metaphase 1:** The tetrads align at the metaphase plate. There are still 4 chromatids in total at this stage.

3. **Anaphase 1:** Homologous chromosomes are separated and pulled to opposite poles. Each daughter cell will receive 2 chromosomes (with their chromatids). So, at this stage, you have 2 chromatids in each of the two daughter cells.

4. **Telophase 1:** The daughter cells begin to form nuclei, and cytokinesis occurs. Each daughter cell now has 2 chromosomes, each consisting of 2 sister chromatids.

**Meiosis 2:**

Meiosis 2 is similar to mitosis but starts with haploid cells produced in Meiosis 1.

1. **Prophase 2:** Each haploid cell has 2 chromosomes (with their chromatids), so there are 4 chromatids in total in the cell.

2. **Metaphase 2:** Chromatids align at the metaphase plate. Still, there are 4 chromatids in total in the cell.

3. **Anaphase 2:** Chromatids are separated and pulled to opposite poles. Each of the two daughter cells will receive 2 chromatids.

4. **Telophase 2:** The daughter cells form nuclei, and cytokinesis occurs. Each daughter cell has 2 chromosomes, each consisting of 1 chromatid.

So, to summarize:

- In Meiosis 1, during Prophase 1, Metaphase 1, and Anaphase 1, there are 4 chromatids.

- In Meiosis 1, during Telophase 1, and in Meiosis 2, during all stages, there are 2 chromatids.

- In Meiosis 1, during Telophase 1, and in Meiosis 2, during Telophase 2, there are 2 chromosomes in each daughter cell, each consisting of 2 chromatids.

- In the final haploid cells, each chromosome consists of 1 chromatid.