NEETBotanyPlant - Growth and Development
Which of the following statements is incorrect regarding the cytokinesis-promoting active substance identified and crystallised by Miller et al.?
Options
- AIt is a modified form of adenine, a purine.
- BIt was discovered from autoclaved herring sperm DNA.
- CIt occurs naturally in plants and can be isolated from coconut milk.
- DIt is highly effective in promoting cytokinesis in plant tissues.
Correct answer
C. It occurs naturally in plants and can be isolated from coconut milk.
Step-by-step solution
Miller et al. identified and crystallised the cytokinesis-promoting active substance and termed it kinetin. Kinetin is a modified form of adenine, which is a purine. It was discovered from autoclaved herring sperm DNA and is highly effective in promoting cytokinesis. However, kinetin does not occur naturally in plants. The search for natural substances with cytokinin-like activities led to the isolation of zeatin from corn-kernels and coconut milk. Therefore, the statement that kinetin occurs naturally in plants an