Which among the following is used to double the chromosome number?

Options :
  1. indole acetic acid
  2. colchicine
  3. zeatin
  4. none of these
Answer and Explanation :-

Answer: Option 2

Explanation:

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Actually, I jade very quickly. Once is usually enough. Either once only, or every day. If you do something once it's exciting, and if you do it every day it's exciting. But if you do it, say, twice or just almost every day, it's not good any more.
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