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Biological Science Study Set 3

Biology

Quiz 4 :

Nucleic Acids and the Rna World

Quiz 4 :

Nucleic Acids and the Rna World

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Nucleic acids have a definite polarity, or directionality. Stated another way, one end of the molecule is different from the other end. How are these ends described?
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Answer:

A

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In the secondary structure of DNA, the a- helical twists are organized into
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B

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Which of the following statements best summarizes the differences between DNA and RNA?
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E

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Which of the following nitrogenous bases is found in RNA, but not DNA?
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What is the difference if any) between the structure of ATP and the structure of the precursor of the A nucleotide in RNA?
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Which of these scientists was not directly involved in the discovery of DNA's structure?
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Why is DNA said to be antiparallel?
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By convention, the sequence of bases in a nucleic acid is always written in which direction?
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Franklin and Wilkins analyzed DNA by bombarding DNA crystals with X- rays. Their analysis yielded two numbers that sparked interest, 3.4 nm and 0.34 nm. What is the significance of these numbers?
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Which of the following includes all of the pyrimidines found in RNA and/or DNA?
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If one strand of a DNA molecule has the sequence of bases 5'ATTGCA3', the other complementary strand would have the sequence
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What forms the "backbone" of a nucleic acid?
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What is the difference between a ribonucleotide and a deoxyribonucleotide?
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Nucleic acids are polymers made up of which of the following monomers?
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Which of the following did Watson and Crick already know when they were trying to determine the structure of DNA?
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Which of the following statements about the 5' end of a polynucleotide strand of RNA is correct?
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Which of the following best describes DNA's secondary structure?
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A nucleotide is made up of which of the following subunits?
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What feature of mononucleotides provides the energy needed for polymerization when nucleic acids are formed?
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Which of the following nitrogenous bases are purines?
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