Recently in Science/Tech we have been talking about cells and organisms, and with that we started learning about DNA and how it makes up every living thing. Mrs. Bibayoff of course wanted us to get an up close look at DNA before we started diving into how it works and the different parts. This activity was super fun and seeing the DNA in the end was pretty cool.
Our test subject was a strawberry that we put through a process to in the end achieve little tiny strands of DNA. Our first step was to mash up the strawberries in a plastic bag to crush some of the cells. We then mixed together a DNA extraction liquid (water, soap, and salt). With a coffee filter, we squeezed out the juice from the strawberry into a cup so that was all we were left with. The very last step was to add rubbing alcohol to the strawberry juice and wait a couple of seconds. Sure enough you could see little strands of DNA in the cup.
I thought this was a very cool hands on way for us to take a look at DNA up close.
*From Mrs. Bibayoff*
Sneak Peek at Coming up in Science/Tech: I've been talking with two different scientists to come in and visit our classes. One is a biologist that would lead us through collecting our own cheek cells to extract the DNA. The other is a neurologist (brain scientist) from the world renowned UC Davis MIND Institute who plans to bring in. . . Sheep Brains! Hoping they are both able to join us in April.