NEET Previous Year Question
You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?
Topic: NEET PYQ
Answer: D. Full step-by-step solution below.
- AAuxin and abscisic acid
- BGibberellin and abscisic acid
- CIAA and gibberellin
- DAuxin and cytokinin
Correct answer: D
Solution
(d) In plant tissue culture, the combination of auxin and cytokinin controls differentiation:• High auxin : low cytokinin → root formation
• High cytokinin : low auxin → shoot formation
• Proper balance → formation of both shoots and roots
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