Differentiation, Dedifferentiation and Redifferentiation — Predicted 2026
AI-Predicted Question Angles for UPSC 2026
Application of D-D-R in modern plant breeding/biotechnology
highNEET often includes questions that link fundamental biological processes to their real-world applications, especially in biotechnology. Questions could explore how dedifferentiation and redifferentiation are exploited in genetic engineering (e.g., regenerating transgenic plants from modified cells) or in developing disease-resistant varieties. Understanding the practical implications beyond just definitions will be key. For example, a question might describe a scenario where a genetically modified cell is used to regenerate a whole plant, asking which processes are essential for this regeneration.
Role of specific genes/molecular pathways in D-D-R
mediumWhile NEET typically focuses on macroscopic and physiological aspects, there's an increasing trend to include basic molecular biology concepts. Questions might touch upon the idea of differential gene expression as the underlying mechanism for differentiation, or how certain transcription factors might be activated during dedifferentiation. This would require students to understand that these processes are not just morphological but have a strong genetic basis, though detailed molecular pathways are unlikely to be asked.
Comparative aspects with animal cell differentiation
mediumA common way to test deeper understanding is by comparing and contrasting. Questions might highlight the unique plasticity of plant cells compared to animal cells, especially regarding totipotency and the extent of dedifferentiation. This would require students to not only know the plant processes but also have a general idea of how animal cells behave post-differentiation, emphasizing why plant tissue culture is so successful compared to animal cell culture for whole organism regeneration.