NEETBotanyCell Cycle and Cell Division
What happens in anaphase 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
A. Homologous chromosomes move to the opposite poles
Step-by-step solution
Meiosis I has a long prophase, which is divided further into five phases. These are leptotene, zygotene, pachytene, diplotene and diakinesis. 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 ch