___DNA contains DNA from 2 or more different sources.

Explanation

**Step-by-Step Solution:**

1. **Understanding DNA**: DNA, or deoxyribonucleic acid, is the genetic material that contains all the gene information of an organism.

2. **Identifying the Concept**: In biotechnology, there are methods to manipulate DNA to introduce desirable traits from one organism into another.

3. **Extraction of Genes**: If a plant has a favorable trait but grows slowly, scientists can identify and extract the specific gene responsible for that trait.

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