Bio Lecture Test 4 Review Questions (1).docx

Bio Lecture Test 4 Review Questions (1).docx - Review...

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Review Questions Chapter 14 Because the two strands of a DNA molecule are ________ to each other, either one can be used as a template to reconstruct the other. A. identical B. antiparallel C. bound D. complementary The synthesis of a growing strand of DNA is carried out by adding nucleotides to the ___ end of an existing strand. A. 2' B. 3' C. 5' D. 1' DNA consists of two antiparallel strands of nucleotides held together by A. peptide bonds. B. covalent bonds. C. ionic bonds. D. hydrogen bonds. The method of DNA replication, where each original strand is used as a template to build a new strand, is called the A. conservative method. B. semiconservative method. C. disruptive method. D. continuous method. E. replication and amplification method. Which enzyme adds new nucleotides to the end of a growing strand? A. ligase B. polymerase C. gyrase D. helicase E. endonuclease DNA primase A. creates a short RNA primer that is complementary to an RNA template. B. creates a short DNA primer that is complementary to an RNA template. C. creates a short DNA primer that is complementary to a DNA template. D. creates a short DNA template that is complementary to an RNA primer. E. creates a short RNA primer that is complementary to a DNA template. As the two strands of DNA are unraveled, which enzyme relieves the strain on the two strands? A. DNA polymerase B. DNA ligase C. DNA gyrase D. DNA endonuclease E. DNA exonuclease
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Which is not a component of nucleic acids? A. organic nitrogenous base B. pentose sugar C. phosphate D. sulfur Chargaff's rules for the pairing of nitrogen bases is A. A = C and G = T. B. A = T and G = C. C. A = G and C = T. D. A+T = G+C. During DNA replication, each new strand begins with a short A. amino acid primer. B. lipid primer. C. hydrophilic primer. D. DNA primer. E. RNA primer. The lagging strand is replicated with a series of Okazaki fragments and that is why its synthesis is considered to be A. discontinuous. B. continuous. C. bidirectional. D. antiparallel. E. semiconservative. If a short sequence of DNA is 5' AATTGCCGT 3', its complement is A. 5' AAAACGCCA 3'. B. 3' TTAACGGCT 5'. C. 3' TTAACGGCA 5'. D. 3' TTAAGCCGA 5'. E. 5' TTAACGGCA 3'. The site where the two original DNA strands separate and active replication occurs is called the A. replication folk.
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