Berries…with a side of DNA?

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Presentation transcript:

Berries…with a side of DNA? Towson University’s Center for STEM Excellence

Exploring… What is DNA? What does DNA do? Where is DNA found?

Exploring DNA: Modeling Build your own model of DNA & label the parts How does your model accurately depict DNA? What are the limits to your model?

Exploring DNA: Functioning

Exploring DNA: Where is it? Where would you find the DNA in each cell? What layers do you have to get through to get to the DNA? www.meritnation.com

Where can you find cells?

If living things consist of cells and cells have DNA, then where in the cell is the DNA? How do we extract and isolate DNA to test this?

Getting through the layers to find DNA How do you get through Cell wall (plants) Cell membrane Nuclear membrane How do you get the DNA out of solution?

If living things consist of cells and cells have DNA, then does our food have DNA in it? Write a hypothesis, make a prediction!

DNA Extraction Procedures What food samples are available? What are controls? How might we use them today? Construct the protocol for DNA extraction.

Making Observations Carefully note what happens after each step of the procedure. Does what you see make sense with what you expected to happen based on the reading? www.eyeglasses.info

Results: Is DNA in food? State your claim. What is your evidence? Defend with your reasoning.