During the experiment I was interested and kind of confused in what was going to happen because some chunks went into the test tube which I thought that it wouldn’t work as well, but I could still see little strands of DNA. One thing that I learnt from this experiment is that I did not know that I could see DNA without any technology like a microscope because of how small they are. One or two uses of DNA extraction is that you can see what is wrong with DNA, like a disease,flu etc, and find a cure for it or, you could DNA to solve crimes at a murder scene or others.
The aim for this experiment was to extract DNA and see the strands of DNA that fruit had, and to understand more about cells and why DNA is in every made up living thing.
The method for this experiment
- grab a zip lock bag, and put strawberries or a banana inside
- put a bit of detergent,1/2 teaspoon of salt and a splash of water
- Now mix/squish until big clumps turn into liquid or have turned smaller.
- grab a beaker and a cloth that isn’t as thick
- then pour in the liquid through the cloth into the beaker until you have no liquid left in your plastic bag.
- next get a test tube, pour what is in the beaker in the test tube
- then clean the beaker and fill it up with hot water
- put the test tube inside the hot water beaker and wait a bit for the test tube to become a bit warm
- lastly put a thin layer of ethanol in the test tube which makes a layer on top of the fruit liquid.
- now take a look pick or a kebab stick to take out one strand of DNA and there you have it
My experiment didn’t work as well but I was still able to see some of the strands of DNA and this was because our fruit liquid wasn’t as liquidy as supposed to and some clumps of banana managed to sneak into the beaker. One thing I did well in my experiment is that I put the right things to make this experiment work but, if I had to do that again I would’ve picked the strawberries. Next time I would improve on not taking the banana,don’t leave any clumps in the bag,and to not make it as thick the liquid.