Here's a breakdown of the process:

1. Unwinding and Separation: The DNA double helix unwinds and separates, exposing the gene sequence that needs to be transcribed.

2. Binding of RNA Polymerase: The enzyme RNA polymerase binds to a specific region of the DNA called the promoter, which signals the start of the gene.

3. RNA Synthesis: RNA polymerase moves along the DNA template strand, reading the sequence of bases and building a complementary RNA molecule. This RNA molecule is called messenger RNA (mRNA).

4. Termination: When RNA polymerase reaches a specific signal called the terminator sequence, it stops transcription and releases the newly synthesized mRNA molecule.

The mRNA molecule then leaves the nucleus and travels to the ribosomes where it's used as a template to create proteins in a process called translation.

Here's a simple analogy:

Think of the DNA as a cookbook. The recipe for a specific dish is like a gene. Transcription is like copying the recipe onto a recipe card (the mRNA). The recipe card can then be used to make the dish (the protein).