Cytokinins have the ability to

Options

A. Induce morphogenesis
B. Substitute cold treatment
C. Convert dwarf plants to tall plants
D. None of the above.

Answer

**Step-by-Step Solution:**

1. **Understanding Cytokinins**: Cytokinins are a class of plant hormones that play a crucial role in various physiological processes within plants. They are primarily involved in promoting cell division and growth.

2. **Role in Cell Division**: Cytokinins stimulate mitosis, which is the process of cell division. This leads to an increase in the number of cells, contributing to overall plant growth.

3. **Inducing Morphogenesis**: One of the significant effects of cytokinins is their ability to induce morphogenesis, which refers to the development of new structures in plants, such as shoots and roots. This is essential for the formation of new plant organs.

4. **Other Functions**: Cytokinins also play a role in the formation of fruits and seeds, but they do not substitute for cold treatment (vernalization) nor do they convert dwarf plants into tall plants. The elongation of plants is primarily influenced by another hormone called auxins.

5. **Conclusion**: Based on the functions of cytokinins, the correct answer to the question "Cytokinins have the ability to" is "induce morphogenesis."

**Final Answer**: Induce morphogenesis.

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