That statement is incorrect. When one gene expresses itself over another, the former is said to be dominant, not DNA.

Here's why:

* DNA is the blueprint of life, containing the genetic code. It's the physical material that genes are made of.

* Genes are segments of DNA that code for specific traits.

* Dominant genes are those that express their trait even when paired with a recessive gene. The recessive gene's trait is masked.

For example, if a plant has a gene for purple flowers (dominant) and a gene for white flowers (recessive), the plant will have purple flowers.

Let me know if you have any other questions!