* Genes are segments of DNA that contain the instructions for building specific proteins.
* DNA acts as a blueprint for protein synthesis.
* Genes are transcribed into RNA (messenger RNA or mRNA).
* mRNA carries the genetic code from the DNA to the ribosomes, where protein synthesis occurs.
* Ribosomes use the mRNA code to assemble amino acids into a specific protein chain.
Proteins are the workhorses of the cell. They perform a wide variety of functions, including:
* Enzymes: Catalyze biochemical reactions.
* Structural components: Provide support and shape to cells and tissues.
* Hormones: Act as chemical messengers.
* Antibodies: Defend against pathogens.
* Transport proteins: Move molecules across cell membranes.
Therefore, by controlling protein production, genes ultimately control the characteristics and functions of an organism.
This is a simplified explanation. The process of gene expression and protein synthesis is much more complex and involves many other factors.