3.15 Genes

1. A gene is a section of a molecule of a DNA. 
2. Genes carry information which form the characteristic (e.g. blood group) of the organism. 
3. The genes are located in the nucleus. 
4. The information is passed to the cytoplasm, where the genetic information is transformed into a protein. 
5. This protein controls the production of the characteristic. 
6. Basically, the information flows from the gene (nucleus) to the protein (cytoplasm).