Here's why it's a key part of the central dogma:

* Central Dogma: This theory states that genetic information flows from DNA to RNA to protein.

* Transcription: The process where the DNA sequence of a gene is copied into a messenger RNA (mRNA) molecule. This mRNA molecule then carries the genetic information from the DNA in the nucleus to the ribosomes in the cytoplasm, where protein synthesis takes place.

Let me know if you'd like to dive deeper into the steps of transcription!