Key Points:
1. A gene is a section of a molecule of DNA.
2. Once again the double helix shape is shown. A section of the DNA is called a gene. This gene carries the information which forms the characteristic of the organism, eg. Blood group, petal colour..
3. The genes are all located in the nucleus, and the information is passed to the cytoplasm and then it gets transformed into a protein and its this protein which controls the production of the characteristic.
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| This is a strand of DNA, each section is called a gene. As you can see, DNA has a double helix shape because of the homologous pairing. |
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