What is vernalization?

Explanation

**Step-by-Step Solution:**

1. **Definition of Vernalization**: Vernalization is the process of inducing flowering in plants by exposing them to prolonged cold temperatures.

2. **Mechanism**: This process typically involves subjecting the plants to cold conditions for an extended period, which can range from a few weeks to several weeks.

3. **Effect of Cold Exposure**: When plants are exposed to cold, they undergo physiological changes that prepare them for flowering. Without this cold exposure, many plants may not flower at all.

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