NEETBotanyCell Cycle and Cell Division
What is the role of the centromeres in Anaphase 1 of meiosis?
Options
- ATo separate homologous chromosomes
- BTo align the bivalent chromosomes on the equatorial plate
- CTo allow microtubules from the opposite poles of the spindle to attach to the kinetochore of homologous chromo
- DTo keep sister chromatids associated
Correct answer
D. To keep sister chromatids associated
Step-by-step solution
The final stage of meiotic prophase I is diakinesis. This is marked by terminalisation of chiasmata. : During this phase the chromosomes are fully condensed and the meiotic spindle is assembled to prepare the homologous chromosomes for separation. By the end of diakinesis, the nucleolus disappears and the nuclear envelope also breaks down. Diakinesis represents transition to metaphase The homologous chromosomes separate, while sister chromatids remain associated at their centromeres.