Which of the following investigators waswere

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10) Which of the following investigators was/were responsible for the following discovery? In DNA from any species, the amount of adenine equals the amount of thymine, and the amount of guanine equals the amount of cytosine. A) Frederick Griffith B) Alfred Hershey and Martha Chase C) Oswald Avery, Maclyn McCarty, and Colin MacLeod D) Erwin Chargaff E) Matthew Meselson and Franklin Stahl Answer: D Topic: Concept 16.1 3
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Skill: Knowledge/Comprehension 11) When T2 phages infect bacteria and make more viruses in the presence of radioactive sulfur, what is the result? 12) Cytosine makes up 38% of the nucleotides in a sample of DNA from an organism. Approximately what percentage of the nucleotides in this sample will be thymine? 13) Chargaff's analysis of the relative base composition of DNA was significant because he was able to show that 14) Which of the following can be determined directly from X-ray diffraction photographs of crystallized DNA? A) the diameter of the helix B) the rate of replication C) the sequence of nucleotides D) the bond angles of the subunits E) the frequency of A vs. T nucleotides Answer: A Topic: Concept 16.1 4
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Skill: Knowledge/Comprehension 15) Why does the DNA double helix have a uniform diameter? 16) What kind of chemical bond is found between paired bases of the DNA double helix?
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