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Biology Exploring Study Set 1

Biology

Quiz 11 :

DNA Structure, Replication, and Repair

Quiz 11 :

DNA Structure, Replication, and Repair

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Which type of molecule was the 32P used to label in the Hershey Chase experiment?
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A

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What happens when living R strain Streptococcus pneumoniae bacteria are mixed with heat-killed S strain Streptococcus pneumoniae bacteria?
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D

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Which nitrogenous bases are considered purines?
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D

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Suppose that the DNA of an organism is studied and found to contain 30% adenine. Based on this information, what percentage of thymine would you predict that the DNA of this organism would also contain?
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How are adjacent nucleotides on a strand of DNA connected to each other?
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What were the T2 bacteriophages used in the Hershey and Chase experiment made of?
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Which of the following molecules is a pyrimidine?
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Suppose that the DNA of an organism is studied and found to contain 14% guanine. What percentage of thymine would you expect to find?
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Which nitrogenous bases are considered pyrimidines?
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If protein was the genetic material, where in the Hershey and Chase experiment would you expect to find radioactivity when phage contained 35S-labelled protein?
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Suppose that you performed a version of the Hershey and Chase experiment, this time using 32P-labelled viruses that insert their DNA into the DNA of the cells that they infect. Also suppose that the viral DNA is then treated as part of the cell's own DNA, and is replicated during DNA replication and passed on to daughter cells when the cell divides. You infect a population of cells with the 32P-labelled viruses, and then let the infected cells go through two generations of cell divisions. In how many cells should you find 32P-labelled DNA?
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Why are fossils of woolly mammoths important for learning about genetic material?
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Prior to 1940, which type of molecule did scientists consider to be the best candidate for the genetic material?
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Which of the following nucleotide sequences represents the complementary sequence that would bind to the DNA strand 5'-GACGTT-3'?
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In the Hershey and Chase experiment, why was the pellet radioactive after bacteria had been infected with 32P-labelled viruses and centrifuged?
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Which of the following techniques did Wilkins and Franklin use to study the structure of DNA?
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How are the two strands in DNA's double helix held to each other?
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From his work with Streptococcus pneumoniae bacteria, Griffith described the transforming principle. What did this principle prove to be?
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The complete genome has been sequenced from an old horse. How old is this genome?
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Which of the following describes the composition of a nucleotide?
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