NEETBotanyCell Cycle and Cell Division
Read the following statements regarding cell division and choose the incorrect statement.
Options
- AKinetochores are small disc-shaped structures present at the surface of the centromeres.
- BDuring mitotic metaphase, spindle fibres attach to the kinetochores of chromosomes.
- CDuring metaphase I of meiosis, the bivalent chromosomes align on the equatorial plate.
- DDuring metaphase I of meiosis, microtubules from opposite poles of the spindle attach to the kinetochores of s
Correct answer
D. During metaphase I of meiosis, microtubules from opposite poles of the spindle attach to the kinetochores of s
Step-by-step solution
The statement in option 4 is incorrect. During metaphase I of meiosis, the microtubules from the opposite poles of the spindle attach to the kinetochores of homologous chromosomes, not sister chromatids. The sister chromatids remain attached at their centromeres and move to the same pole during anaphase I. Options 1, 2, and 3 are factually correct statements as per NCERT descriptions of mitosis and meiosis I. Answer: During metaphase I of meiosis, microtubules from opposite poles of the spindle attach to the kineto