This is a post-lab question for my genetics class: How can you prove that the su

Question

This is a post-lab question for my genetics class:

How can you prove that the substance you have extracted is DNA? Brainstorm with your group members (not possible as this is a solo post lab [until I can find a study group]) and outline an experiments that could be conducted to test your hypothesis. Present your group's idea in a teacher-mediated classroom forum (not possible, this will be typed and submitted) and hold a discussion with classmates about whether or not your chosen method would work.

The lab we preformed the Strawberry DNA Extraction, I think even little kids at science fairs have done this one!

The “hint” given was to think about the chemical nature of DNA.

I understand that DNA is made of deoxyribonucleic acid. Deoxyribose being a specific type of sugar. There is also a phosphate and more importantly (or at least I think) is the nitrogenous base.

Explanation / Answer

You won't be able to 'prove' that the substance is DNA using the supplies in that experiment. In order to prove that what you had was DNA, you would need either a very powerful microscope or you would need to be able to analyze the molecules present in the sample and show that they are the same molecules that make up DNA.

However, it sounds like you were able to extract the DNA. You might try some of the variations on the experiment (like changing detergents) to see if it affects the substance or the amount of substance that you find.

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