Question

Which of the following hormone is used for shoot differentiation in callus?

• A. 2, 4-D
• B. Benzyl amino purine (BAP)
• C. Deformylase
• D. Gibberillic acid

Answer 1

The correct option is B Benzyl amino purine (BAP)

Best regeneration of shoot was achieved when they were cultured on a medium supplemented with BAP. 6-Benzylaminopurine, benzyl adenine or BAP is a first-generation synthetic cytokinin, that elicits plant growth and development responses, setting blossoms and stimulating fruit richness by stimulating cell division. After callus is formed, it can be transferred to media containing BAP for shoot differentiation. Thus, option B is correct.

2,4-D is an auxin.

Deformylase is an enzyme and does not involve in shooting.

Gibberellic acid is involved in seed germination.

So, the correct answer is option B.