Here's a breakdown:

* Transcription is the process of copying a gene's DNA sequence into an RNA sequence.

* This RNA molecule is called messenger RNA (mRNA) because it carries the genetic information from the DNA in the nucleus to the ribosomes in the cytoplasm, where it's used to make proteins.

* In simpler terms, transcription is like creating a copy of a recipe (DNA) on a notecard (mRNA) so you can take it to the kitchen (ribosome) and actually make the meal (protein).