Meiosis - Molecular Biology of the Cell

meiosis  After learning about mitosis and meiosis from our individual videos, explore the stages side by At the end of meiosis II, each cell would have half the original number of chromosomes, that is, 15 chromosomes 2 How many DNA molecules are

​Topic : Meiosis · Homologous chromosomes are attracted to each other and pair up and become sister chromatids · Crossing over ( Meiosis II Stages Prophase II is the first step in meiosis II Like mitosis and meiosis I, the chromosomes condense throughout this step The centrosomes move

But if meiosis doesn't happen normally, a baby may have an extra chromosome , or have a missing chromosome These problems can cause Meiosis I and Meiosis II: Meiosis I produces two haploid cells from a diploid cell Meiosis II produces two haploid cells from each haploid