Highlight any four areas where genetic modification of plants has been useful.

Explanation

**Step-by-Step Solution:**

1. **Introduction to Genetic Modification in Plants:**
Genetic modification of plants involves altering their DNA to enhance certain traits. This technology has been applied in various areas to improve agricultural productivity and nutritional value.

2. **Example 1: Golden Rice**
- Golden rice is a genetically modified variety that has been engineered to produce higher levels of carotenoids, which are precursors to vitamin A.
- This rice appears yellow due to its carotenoid content and is aimed at addressing vitamin A deficiency in populations that rely heavily on rice as a staple food.
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