Cell Division — Mains Questions

Discuss the significance of cell cycle checkpoints in maintaining genomic stability and preventing oncogenesis. How do targeted therapies leverage this understanding in cancer treatment?

Meiosis is not just about reducing chromosome number; it is also a major source of genetic variation. Elaborate on the mechanisms by which meiosis contributes to genetic diversity and its evolutionary significance.

Examine the role of cell division in the context of India's bioeconomy, with specific reference to advancements in stem cell research and agricultural biotechnology. What are the associated challenges and ethical considerations?