NEETBotanyCell Cycle and Cell Division
What happens during metaphase I in meiosis?
Options
- AHomologous chromosomes pair to form bivalents
- BBivalents arrange on the equatorial plate
- CHomologous chromosomes move to the opposite poles with both their chromatids
- DNuclear membrane and nucleolus reappear
Correct answer
B. Bivalents arrange on the equatorial plate
Step-by-step solution
During metaphase I the bivalents arrange on the equatorial plate. This is followed by anaphase I in which homologous chromosomes move to the opposite poles with both their chromatids. Each pole receives half the chromosome number of the parent cell. In telophase I, the nuclear membrane and nucleolus reappear. Meiosis II is similar to mitosis. During anaphase II the sister chromatids separate. Thus at the end of meiosis four haploid cells are formed.