Clickers_1_1010_2010

Clickers_1_1010_2010 - DNA sample? a. b. c. d. 25% 25% 25%...

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Clickers 1
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Have you registered your CLICKER yet? 47% 30% 23% 1. Yes 2. NO 3. What’s a clicker?
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The phosphates on a nucleotide are attached to 1 2 3 4 30% 20% 33% 17% 1. The 3’ carbon on the sugar 2. The 5’ carbon on the sugar 3. The 2’ hydroxyl 4. The base.
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Which if the following is unique to DNA but not RNA? 1 2 3 4 5 23% 27% 20% 10% 20% 1. Areas of double strandedness 2. A 2’C hydroxyl 3. Purines. 4. Phosphodiester bonds 5. Potential site for mutation
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Using UV spectroscopy, Dr. Ricky examined a sample of DNA that he isolated from his buddy Julien. He observed an absorbance of 1.2 at 260 nm and an absorbance of 0.3 at 280 nm. What does this information tell us about the
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Unformatted text preview: DNA sample? a. b. c. d. 25% 25% 25% 25% a. The DNA is very pure b. The DNA has protein contaminants c. There is no DNA. d. He did something wrong! Mr. Lahey had a good sample of DNA that was very pure and he observed an absorbance of 0.5 at 260 nm. What does this result tell us about his DNA? 1 2 3 4 25% 25% 25% 25% 1. His DNA is really not very pure. 2. The concentration of his DNA is 0.5 micrograms/ ml 3. The concentration of his DNA is 1 microgram/ml since it is pure 4. The concentraion of his DNA is 25 microgram/ml...
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Clickers_1_1010_2010 - DNA sample? a. b. c. d. 25% 25% 25%...

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