Meiosis is the process that produces haploid gametes from diploid cells in the gonads. As a diploid cell progresses through the stages of meiosis I and meiosis II, at what point do the cells first become haploid?

at the end of meiosis I
at the end of metaphase II
at the end of anaphase I
at the end of meiosis II

1 answer

The cells first become haploid at the end of meiosis I. During meiosis I, homologous chromosomes are separated, resulting in two daughter cells that contain half the number of chromosomes (haploid) compared to the original diploid cell. Although each cell has half the number of chromosomes, the chromosomes are still in their duplicated form (two sister chromatids). It is during meiosis II that these sister chromatids are separated into individual chromosomes. So to answer your question, it is "at the end of meiosis I."