Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 10.7, Problem 1MQ
Summary Introduction
SV40 (Simian vacuolating virus 40) also known as polyomavirus. It causes tumors in both animals and humans. SV40 is the most studied eukaryotic model of DNA virus. It is of icosahedral shape with closed double-stranded circular DNA. Its genome is of 5.2 kb.
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Chapter 10 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 10.1 - Distinguish between a positive-strand RNA virus...Ch. 10.1 - Prob. 2MQCh. 10.1 - Prob. 3MQCh. 10.1 - Describe the classes of viruses based on their...Ch. 10.2 - Prob. 1MQCh. 10.2 - Prob. 2MQCh. 10.2 - Prob. 3MQCh. 10.2 - Prob. 1CRCh. 10.3 - Prob. 1MQCh. 10.3 - In the X174 genome, describe the difference...
Ch. 10.3 - Prob. 3MQCh. 10.3 - Describe how the genome of bacteriophage X174 is...Ch. 10.4 - In what major way does transcription of phage DNA...Ch. 10.4 - Prob. 2MQCh. 10.4 - Why can it be said that transcription of the...Ch. 10.5 - What type of genome is seen in most archaeal...Ch. 10.5 - Compared with other archaeal viruses, what are two...Ch. 10.5 - Prob. 1CRCh. 10.6 - Prob. 1MQCh. 10.6 - Prob. 2MQCh. 10.6 - Prob. 3MQCh. 10.6 - Prob. 1CRCh. 10.7 - Prob. 1MQCh. 10.7 - Prob. 2MQCh. 10.7 - Prob. 3MQCh. 10.7 - Prob. 1CRCh. 10.8 - Prob. 1MQCh. 10.8 - Prob. 2MQCh. 10.8 - How are protein synthesis and genomic replication...Ch. 10.8 - Prob. 1CRCh. 10.9 - Prob. 1MQCh. 10.9 - Prob. 2MQCh. 10.9 - Prob. 3MQCh. 10.9 - Rabies virus and poliovirus both have...Ch. 10.10 - Prob. 1MQCh. 10.10 - Prob. 2MQCh. 10.10 - Prob. 3MQCh. 10.10 - Prob. 1CRCh. 10.11 - Prob. 1MQCh. 10.11 - Prob. 2MQCh. 10.11 - How does the role of reverse transcriptase in the...Ch. 10.11 - Why do both hepadnaviruses and retroviruses...Ch. 10.12 - What type of bacteriophages are most common in the...Ch. 10.12 - Prob. 2MQCh. 10.12 - Prob. 3MQCh. 10.12 - Prob. 1CRCh. 10.13 - Prob. 1MQCh. 10.13 - Prob. 2MQCh. 10.13 - Prob. 3MQCh. 10.13 - Prob. 1CRCh. 10.14 - Prob. 1MQCh. 10.14 - Prob. 2MQCh. 10.14 - Prob. 3MQCh. 10.14 - How do bacterial viruses help prevent human...Ch. 10.15 - If viroids are circular molecules, why are they...Ch. 10.15 - Prob. 2MQCh. 10.15 - Prob. 1CRCh. 10.16 - Prob. 1MQCh. 10.16 - Prob. 2MQCh. 10.16 - Prob. 3MQCh. 10.16 - What are the similarities and differences between...Ch. 10 - Not all proteins are made from the RNA genome of...Ch. 10 - Replication of both strands of DNA in adenoviruses...Ch. 10 - Imagine that you are a researcher at a...Ch. 10 - Prob. 4AQ
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- Bacteriophage T4 has a linear double-stranded DNA genome, yet mapping many mutations, as shown in Figure, generates a circular linkage map. How might you explain this discrepancy?arrow_forwardAs stated in the text, bacteriophages have been discovered with the following base substitutions in their DNA: (a) dUMP completely substituting for 'TMP (b) 5-hydroxymethyl-dUMP completely substituting for d'TMP (c) 5-methyl-dCMP completely substituting for dCMP For any one of these cases, formulate a set of virus-coded enzyme activities that could lead to the observed substitution. Write a balanced equation for each reaction you propose.arrow_forwardThe DNA of a deletion mutant of λ bacteriophage has a length of 15.4383 μm instead of 19.6356 μm. How many base pairs are missing from this mutant? *arrow_forward
- How many nucleoids are in this bacterial cell?arrow_forwardConsidering that prokaryote genomes do not have large introns, how is it possible to move a eukaryotic gene into a transformed bacterium, since they lack a spliceosome?arrow_forwardThe bacteriophage genome consists of many genes encoding proteins that make up the head, collar, tail, and tail fibers. When these genes are transcribed following phage infection, how are these proteins synthesized, since the phage genome lacks genes essential to ribosome structure?arrow_forward
- Briefly describe the structure of bacteriophage.arrow_forwardNitrogen and carbon are more abundant in proteinsthan sulfur. Why did Hershey and Chase use radioactive sulfur instead of nitrogen and carbon to label theprotein portion of their bacteriophages in their experiments to determine whether parental protein or parental DNA is necessary for progeny phage production?arrow_forwardHow is genome replicated in M13 bacteriophage?arrow_forward
- What feature of the –10 sequence makes it easy to unwind?arrow_forwardVirologists are closely monitoring the evolution of an avian virus that occasionally jump species. This virus is known to adhere to sialic acids on human skin. Sialic acids are a family of nine-carbon sugar compounds that bear significant negative charges. Which of the following mutations in the virus is the most alarming? (A) A deletion of a Lys residue on the viral spike protein. (B) A substitution of a Lys residue by an Asp residue on the viral spike protein. (C) A deletion of an Asp residue on the viral spike protein. (D) A substitution of a Asp residue by a Lys residue on the viral spike protein. Chemically speaking, protonation of the carbonyl oxygen in a peptide bond makes the carbonyl carbon more vulnerable to nucleophilic attacks. Which of the following structures in chymotrypsin implements this strategy? (A) Asp 102 (B) Oxyanion hole (C) Ser 195 (D) His 57arrow_forwardThe following DNA sequence is part of one exon and contains the beginning of a gene’s open reading frame 5' ATGCCTGAATCAGCTTTA 3'. How many amino acids does this sequence encode? A) 5 B) 6 C) 7 D) 18arrow_forward
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