Both DNA and RNA are involved in the central dogma of molecular biology, which describes the flow of genetic information within a biological system. This process consists of three main steps:

1. Replication: DNA is copied to produce more DNA. This process ensures that genetic information is passed on to daughter cells during cell division.

2. Transcription: DNA is transcribed into RNA. This step converts the genetic information stored in DNA into a form that can be used to build proteins.

3. Translation: RNA is translated into protein. This step uses the information encoded in mRNA to assemble amino acids into a specific protein sequence.

DNA acts as the blueprint for genetic information, while RNA plays various roles in the process, including:

* Messenger RNA (mRNA): Carries the genetic code from DNA to the ribosomes, where proteins are made.

* Transfer RNA (tRNA): Carries amino acids to the ribosomes, matching them to the codons on mRNA.

* Ribosomal RNA (rRNA): Forms part of the ribosomes, the cellular machinery that synthesizes proteins.

Therefore, DNA and RNA work together in a coordinated manner to ensure the accurate transmission and expression of genetic information.