During which stage of meiosis do chromosomes align single file along the equator of a haploid cell?

• A. Prophase II
• B. Metaphase I
• C. Metaphase II
• D. Anaphase II

Answer: (C)

Verified step by step guidance

1. Recall that meiosis consists of two sequential divisions: meiosis I and meiosis II, each with distinct stages.
2. Understand that in meiosis I, homologous chromosomes pair up and align along the metaphase plate, which is called Metaphase I.
3. Recognize that after meiosis I, the cells are haploid but chromosomes still consist of two sister chromatids.
4. In meiosis II, sister chromatids separate, and during Metaphase II, chromosomes align single file along the equator of the haploid cell.
5. Therefore, the stage where chromosomes align single file along the equator of a haploid cell is Metaphase II.