Here's a breakdown:

* DNA: The molecule that holds the genetic instructions for an organism.

* RNA: A molecule that acts as a messenger, carrying the genetic information from DNA to the ribosomes, where proteins are made.

The process of transcription involves the following steps:

1. Unwinding of DNA: The DNA double helix unwinds, separating the two strands.

2. Binding of RNA polymerase: An enzyme called RNA polymerase binds to a specific region on the DNA called a promoter, initiating the transcription process.

3. RNA synthesis: RNA polymerase moves along the DNA strand, reading the genetic code and using it to build a complementary RNA molecule.

4. Termination: The RNA polymerase reaches a specific signal on the DNA, causing it to detach from the DNA and release the newly synthesized RNA molecule.

The RNA molecule created during transcription is called messenger RNA (mRNA) and carries the genetic information to the ribosomes for protein synthesis.