NEETBotanyCell Cycle and Cell Division
What happens in metaphase I of meiosis?
Options
- AHomologous chromosomes move to the opposite poles
- BBivalents arrange on the equatorial plate
- CHomologous chromosomes pair to form bivalents and undergo crossing over
- DSister chromatids separate
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 withboth 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.