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Please help!! What evidence from living species supports the theory that species descended from other species over time?
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Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth
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The hershey and chase experiments involved the preparation of two different types of radioactively labeled phage. which of the following best explains why two preparations were required? a. the bacteriophage used in the experiments was a t2 phage. b. it was necessary that each of the two phage components, dna and protein, be identifiable upon recovery at the end of the experiment. c. each scientist had his own method for labeling phage, so each conducted the same experiment using a different isotope. d. establishing the identity of the genetic material required observation of two phage generations.
Answers: 2
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