II. DNA Capsid- VIRUS HOST CELL Viral DNA mRNA ww Viral DNA Capsid proteins III. IV. Viral reproductive cycle In the figure, what enzyme is utilized to synthesize mRNA (arrow marked III)? 00000 Viral DNA polymerase Host cell DNA polymerase Reverse transcriptase Viral RNA polymerases Host cell RNA polymerase

II. DNA Capsid- VIRUS HOST CELL Viral DNA mRNA ww Viral DNA Capsid proteins III. IV. Viral reproductive cycle In the figure, what enzyme is utilized to synthesize mRNA (arrow marked III)? 00000 Viral DNA polymerase Host cell DNA polymerase Reverse transcriptase Viral RNA polymerases Host cell RNA polymerase

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter12: Dna: The Carrier Of Genetic Information

Section: Chapter Questions

Problem 3TYU: In the Hershey-Chase experiment with bacteriophages, (a) harmless bacterial cells permanently...

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7. Replication factor C plays which of the following roles in eukaryotic DNA replication?A. the sliding clampB. the clamp loaderC. the DNA ligaseD. a single-stranded DNA binding proteinE. a cofactor required for activating the DNA polymerase 8. Phages that program the host cell for continued particle releasing without killing the cell are called ____________ phages.A. lyticB. lysogenicC. temperateD. chronicE. none of the above 9. Retroviruses use _______ to make a DNA copy of their RNA genome.A. restriction enzymesB. DNA polymerase IC. RNA polymerase IID. reverse transferaseE. reverse transcriptase
In the Hershey-Chase experiment with bacteriophages, (a) harmless bacterial cells permanently transformed into virulent cells (b) DNA was shown to be the transforming factor of earlier bacterial transformation experiments (c) the replication of DNA was conclusively shown to be semiconservative (d) viral DNA was shown to enter bacterial cells and cause the production of new viruses within the bacteria (e) viruses injected their proteins, not their DNA, into bacterial cells
A binding .site for RNA polymerase is called a ___ . a. gene b. promoter c. codon d. protein
(65) A new strain of influenza virus emerges that results in world wide pandemic of influenza. Affected persons lack pre-existing immunity to this strain. Which of the following genetic mechanism best explains the emergence of this pandemic strain? (A) Deletion (B) insertion (C) Point Mutation (D) Reassortment (E) Recombination
1. (a) cleaves both strands of the target DNA CRISPR repeat sequences gRNA Cas9 nuclease tracrRNA (b) encodes Guide RNAs CRISPR repeat sequences gRNA Cas9 nuclease tracrRNA
1. Identify the three protein complexes/enzymes important in eukaryotic DNA replication A. Enhancer, silencer, promoter B. DNA polymerase, RNA polymerase, mediator C. Start codon, stop codon, RNA polymerase D. Prereplication complex, origin recognition complex, MCM helicase
13. In bacteria, mismatch repair involves:A. DNA glycosylase/lyaseB. AP endonucleaseC. RecA and LexA proteinsD. MutS, MutL and MutH proteinsE. UvrABC proteins 14. _______ involves an exchange of DNA between two interacting DNA molecules.A. TransferenceB. TranspositionC. Crossing overD. InductionE. None of the above 15. The bacterial core polymerase has two functions: 5' to 3' polymerase activity and _________________ activity.A. 5' to 3' exonucleaseB. 3' to 5' polymerase C. 3' to 5' exonuclease D. topoisomeraseE. none of the above
2. You are cloning the genome of a new DNA virus into pUC18. You plate out your transformants on ampicillin plates con-taining X-gal and pick one blue colony and one white colony. When you check the size of the inserts in each plasmid (blueand white), you are surprised to fi nd that the plasmid fromthe blue colony contains a very small insert of approximately60 bp, while the plasmid from the white colony does notappear to contain any insert at all. Explain these results.
1)explain why it is far less important for RNA Polymerase to have proofreading activity than it is for DNA polymerase.60-word limit
Match each enzyme name in the left column with the correct descriptive phrase in the right column. (a) Topoisomerase II(b) DNA ligase(c) DNA polymerase γ(d) Reverse transcriptase(e) DNA polymerase I(f) DNA polymerase III i. Catalyzes most nucleotide incorporations in bacterial DNA replicationii. Cleaves RNA in a DNA–RNA hybrid moleculeiii. Uses a tRNA primer in synthesis of retroviral DNAiv. Acts through an adenylylated DNA intermediatev. Catalyzes formation of a double-strand DNA breakvi. Catalyzes mitochondrial DNA replication
Define the following terms:a. Chargaff’s rulesb. constitutive heterochromatinc. bacteriophaged. replication-dependent histonese. replication-independent histones
Define the following terms:a. processivityb. replisomec. exonucleased. DNA ligasee. replication fork