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14 Cards in this Set
- Front
- Back
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1) Viruses that attack bacteria are called
A) lytic B) virulent C) phages D) proviruses |
C |
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2) Nucleotides have a phosphate group attached at the ________ carbon atom of the sugar.
A) 3' B) 5' C) 1' D) 2' |
B |
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3) Which enzyme adds new nucleotides to the end of a growing strand?
A) gyraseB) polymeraseC) ligaseD) endonuclease E) helicase |
B |
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4) Which statement about the Hershey-Chase experiment is false?
A) Protein was labeled with radioactive sulfur B) The virus-infected bacteria contained radioactive sulfur. C) DNA was labeled with radioactive phosphorus. D) The virus-infected bacteria contained radioactive phosphorus. |
B |
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DNA primase
A) creates a short DNA primer that is complementary to a DNA template. B) creates a short RNA primer that is complementary to an RNA template. C) creates a short RNA 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 DNA primer that is complementary to an RNA template. |
C |
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Replication of DNA is
A) redundant.B) conservative.C) semidispersive.D) semiconservative.E) dispersive. |
D |
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7) Which of the following statements about DNA replication is false?.
B) Each existing strand is used as a template for making a new strand. C) The two strands are separated. D) Synthesis of both new strands is in the 5' to 3' direction. A) The newly synthesized DNA is packaged into one nucleus, and the original DNA is packaged into another nucleus |
A |
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If a short sequence of DNA is 5' AATTGCCGT 3', its complement is
A) 3' TTAACGGCA 5'. B) 5' AAAACGCCA 3'. C) 5' TTAACGGCA 3'. D) 3' TTAAGCCGA 5'. E) 3' TTAACGGCT 5'. |
A |
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)During DNA replication, DNA pol III synthesizes the lagging strand in segments, called
A) replication fragments.B) Okazaki fragments.C) Chargaff's segments.D) replisomes.E) repeating primers. |
B |
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Eukaryotic organisms speed up the process of DNA replication by
A) producing several sliding clamp complexes which provide more binding sites for DNA pol III.B) shortening the initiation phase.C) using DNA gyrase to unravel the double helix rather than DNA helicase.D) using multiple origins of replication on each chromosome. |
D |
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Who demonstrated that phage genetic material is DNA and not protein?
A) FranklinB) Avery, MacLeod, and McCartyC) ChargaffD) Watson and CrickE) Hershey and Chase |
E |
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During DNA replication, which enzyme removes the RNA primers and then fills in the gap?
A) DNA primase B) DNA pol III C) DNA pol I D) DNA ligase |
C |
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If a mutation produced helicase that was unable to hydrolyze ATP, DNA replication would be
A) unaffected. B) more prone to errors.C) stopped. D) speeded up. |
C |
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An organism has been found to contain a defective form of photolyase. What function might be impaired in this organism?
A) Repair of DNA damage caused by UV lightB) Recognition of damaged DNA by the UvrABC complexC) Stabilization of single-stranded DNA during DNA replication D) Lengthening of the tips of chromosomes |
A |
