DNA extraction

DNA extraction, Burratino vocational school for minorities

DNA extraction, Burratino vocational school for minorities

DNA extraction

Strawberries, bananas, bacteria, humans—all living things have genes, and all of these genes are made of DNA. That's why scientists can take a gene from one living thing and put it into another. For example, they can put human genes into bacteria to make new medicines.

How do scientists take DNA out of a living thing? It's not that hard—there are lots of ways to do it! You can follow the directions in the video above to get DNA out of a strawberry. Or you can follow the steps below. Either way you'll have strawberry DNA at the end!

General Objectives:

  • learn what DNA is and how we can extract it from fruits
  • learn how DIY biology is used in daily applications

The participants will:

  • understand the basic concepts of genetics
  • create their own DNA extraction experiment
  • be able to understand how information is being stored in nature

Activities

  • Introduce the concept of genes and DNA
  • Prepare solutions and materials for DNA extraction from fruits experiment
  • Run the experiment with various fruits
  • Discuss the results

 

What you need:

  • measuring cup
  • measuring spoons
  • rubbing alcohol
  • 1/2 teaspoon salt
  • 1 tablespoon Dawn dishwashing detergent
  • glass or small bowl
  • funnel
  • tall drinking glass
  • 3 strawberries (green tops removed)
  • reclosable plastic sandwich bags
  • test tube or small glass jar (like the kind spices come in)