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Susan Dorfman's picture

DNA extraction in Grade 7 Biology

Submitted by Susan Dorfman on Mon, 07/28/2008 - 12:05pm.
The DNA Extraction was fun. I will do this quick procedure with my Grade 7 biology students. They will enjoy the ability to hold the DNA in their fingers, and of course, will want to take it home. I have seen microcentrifuge tubes in which they could place the DNA and use the tube to make a necklace. There is a kit for extracting DNA from cheek cells, but the time frame exceeds my 45 minute class period. This activity with strawberries is one that will fit my time frame and give the students enjoyment and many opportunities for questions and reflection. I will send them home with an open ended assignment to present to the class the next day.

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