Hello,
In this post I will be talking about two small projects we did this week in science class about DNA! The first one, a lab. We did a lab where we looked at the DNA of a strawberry through a microscope. The procedure went something like this:

– Put half a strawberry into a plastic bag
– Add a little bit of water, dish soap and salt
– Seal the bag and squish it all together
– Pour the mixture into a test tube until half full
– Add 10ml of cold ethanol
– Watch
– Remove top chunks from test tube and put under microscope
– Observe

Here are some pictures of the lab:

 

This is what we saw through the microscope:

 

The other project we did was a mini DNA model that we built out of pipe cleaners and straws. It needed to show DNA in a double helix form, and also the 4 different base pairs. The straws are split in the middle to show the two different bases together, and the part sticking out of the side is sugar and phosphate. Here is a picture of it with a diagram of one beside it:

Both projects were quick, but also fun to do, and I learned what I needed to learn easily.