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Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?
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Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria
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Sexual reproduction in the parent cell will result in offspring with a) identical genetic information. b) half the genetic information. c) double the genetic information. d) four times the genetic information.
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A membrane that only “lets” certain molecules in while keeping other molecules out is___...
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