The illustration below shows the steps of meiosis I. What is the step that is labeled D?

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

Answer: (C)

Verified step by step guidance

1. Step 1: Begin by understanding the process of meiosis I, which is the first division in meiosis. Meiosis I consists of four main stages: Prophase I, Metaphase I, Anaphase I, and Telophase I.
2. Step 2: Recall the key events in each stage. In Prophase I, homologous chromosomes pair up and exchange genetic material through crossing over. In Metaphase I, homologous chromosome pairs align at the metaphase plate. In Anaphase I, homologous chromosomes are pulled apart to opposite poles of the cell. In Telophase I, the cell begins to divide, forming two haploid cells.
3. Step 3: Analyze the illustration provided in the problem. Look for visual cues that indicate the stage of meiosis. For example, in Anaphase I, homologous chromosomes are visibly separating and moving toward opposite poles.
4. Step 4: Compare the labeled step D in the illustration to the descriptions of the stages. If the chromosomes are being pulled apart, this corresponds to Anaphase I.
5. Step 5: Confirm your understanding by reviewing the sequence of events in meiosis I and ensuring that the labeled step D matches the description of Anaphase I.