Kiwi Fruit DNA

We extract the DNA from a kiwi fruit by mashing it with detergent liquid, salt and water. The mixture is then filtered and incubated before a layer of chilled ethanol is added. The jelly-like DNA can then be extracted. Biology - Cells And DNA - Learning Points. DNA is found in the nucleus of a cell. DNA instructs the cell to make specific proteins, and these in turn determine what the cell is and what it does. DNA has a unique structure. The DNA molecule consists of two strands joined together by base pairs and twisted into the shape of a helix. On the inside of the spiral are four bases - adenine (A), thymine (T), cytosine (C) and guanine (G) - arranged in long sequences. The order in which the bases are arranged determines what proteins are made by the cell. DNA replicates itself just before cell division. Just before the cell divides, the strands of DNA split apart. The bases on each strand are exposed and provide the template upon which a new, complementary strand can develop. DNA can be extracted from cells. A Twig Experiment Film. Let students experience real experiments in lab conditions anywhere, from setup, method all the way through to analysis and real-world application.