1. Preparation of a cell extract: To extract DNA from a tissue/cells of interest, in this experiment the heart muscle of rats, the cells have to be separated and the cell membranes have to be ...

In this practical you will extract the DNA from strawberries. Strawberries can have up to eight copies of each chromosome and so contain a lot of DNA. When extracted from the strawberry this ...

Instead, the researchers turned to the natural experiment. Some people carry mutations in their DNA that increase appetite ... at the effect of weight, in isolation, on lifespan." ...