1. Transcription:
* DNA to mRNA: mRNA is transcribed from DNA in the nucleus of a cell. This means that the genetic information encoded in DNA is copied into a messenger RNA molecule.
2. Carrying Genetic Information:
* From nucleus to ribosomes: mRNA carries this genetic information from the nucleus to the ribosomes, which are the protein-making machinery of the cell.
3. Translation:
* mRNA to protein: At the ribosome, mRNA serves as a template for the synthesis of proteins. Ribosomes read the mRNA sequence in codons (sets of three nucleotides), each of which codes for a specific amino acid.
* Amino acid chain: As the ribosome moves along the mRNA, it brings together the appropriate amino acids in the order dictated by the mRNA sequence. This forms a chain of amino acids, which eventually folds into a functional protein.
In summary: mRNA acts as a go-between, carrying genetic instructions from DNA to the ribosomes, where those instructions are used to build proteins. This is a fundamental process for all living organisms, ensuring the production of proteins that perform essential functions within cells and organisms.
