Here's a more accurate explanation:
DNA and Genes:
- Chromatin contains DNA (deoxyribonucleic acid), the molecule that carries the genetic instructions for the cell. DNA is organized into genes, which are specific regions of DNA that code for particular proteins.
Transcription and RNA:
- When a cell needs to produce a specific protein, the gene encoding that protein undergoes transcription. During transcription, an enzyme called RNA polymerase creates a messenger RNA (mRNA) molecule that carries a copy of the genetic information from DNA to the cytoplasm.
Translation and Proteins:
- In the cytoplasm, the mRNA molecule encounters ribosomes, which are cellular structures responsible for protein synthesis. Through a process called translation, the ribosomes read the mRNA sequence and assemble amino acids into a polypeptide chain, forming the protein specified by the gene.
So, while chromatin contains the DNA that provides the instructions for protein synthesis and other cellular functions, it does not directly dictate the cell's functions. Rather, it serves as the repository of genetic information that is transcribed and translated into RNA and proteins, which then carry out the specific functions within the cell.