draw the arrangements of chromosomes in a cell (2n = 4) undergoing anaphase I and then anaphase II of meiosis

To illustrate the arrangements of chromosomes in a cell undergoing anaphase I and anaphase II of meiosis, we can describe each phase as follows:

Anaphase I

During anaphase I of meiosis, homologous chromosomes are separated and pulled to opposite poles of the cell. In a cell with 2n = 4, the arrangement of chromosomes before anaphase I would typically look like this:

[1 | 1 | 2 | 2]

Where:

• 1 represents one type of homologous chromosome.
• 2 represents another type of homologous chromosome.

At anaphase I, each homologous pair separates:

[1 | 2]    [1 | 2]

Anaphase II

During anaphase II of meiosis, the sister chromatids of each chromosome are pulled apart. Following the previous anaphase I, since the cell has now divided and there are two cells, the arrangement after anaphase I would typically look like this:

Cell 1: [1]    [1]
Cell 2: [2]    [2]

At anaphase II, the sister chromatids separate within each of these cells:

Cell 1: [1]    [1]
Cell 2: [2]    [2]

Summary

In summary, during anaphase I, homologous chromosomes separate, while during anaphase II, sister chromatids separate. The arrangements have been illustrated as described above for a cell with 2n = 4.