Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
In tissue culture experiments of tobacco callus, it was seen that when the culture medium contains 2 ppm of IAA and 2 ppm of kinetin, an undifferentiated mass of callus is produced. If the ratio of kinetin to IAA is increased, then
BiologyPlant - Growth and DevelopmentNEET
Options:
  • A The callus size would increase by repeated cell divisions
  • B Root initiation would take place
  • C Shoot initiation would occur
  • D The callus would die
Solution:
2320 Upvotes Verified Answer
The correct answer is: Shoot initiation would occur
Kinetin causes organogenesis in tissue culture.
Kinetin is a type of cytokinin, a class of plant hormone that promotes cell division. Kinetin was originally isolated by Miller and Skoog et al. as a compound from autoclaved herring sperm DNA that had cell division-promoting activity.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.