After Telophase I, the daughter cells are what in terms of ploidy?

• A. Diploid
• B. Haploid
• C. Tetraploid
• D. Triploid

Answer: (B)

The main idea is that meiosis I halves the chromosome number by separating homologous chromosomes. At the start, the cell is diploid with replicated chromosomes. By the end of Telophase I, homologous chromosomes have been pulled to opposite ends and the cell divides, producing two daughter cells that contain one chromosome from each pair. That means they are haploid, even though each chromosome may still consist of two sister chromatids. Only after Telophase II do the sister chromatids finally separate, generating four haploid cells. So, after Telophase I, the daughter cells are haploid.