Here's why:

* DNA (Deoxyribonucleic Acid): DNA holds the genetic instructions for an organism. It contains the code for building and maintaining an organism. This code is organized into genes, which are specific segments of DNA that provide the instructions for making proteins.

* RNA (Ribonucleic Acid): RNA is a molecule that acts as a messenger, carrying the instructions from DNA to the ribosomes (cellular structures where proteins are made).

* Transcription: The process of creating RNA from a DNA template is called transcription. The DNA sequence is copied into a complementary RNA sequence.

In summary: DNA contains the code and serves as a template for the production of RNA. RNA then carries the instructions from the DNA to the ribosomes for protein synthesis.