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The prophage is an actively replicating virus that has integrated it's genetic material into the host chromosome. This prophage is resistant to infection by same lysogenic phage. Therefore these statements are true. Hence option a is incorrect.
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Which of the following is not a characteristic of a prophage? Expresses only genes required for...
all please 27. Which of the following is not a mode of action of antivirals? A)...
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27. Which of the following is not a mode of action of antivirals? A) block penetration; B) block transcription and translation; C) inhibit DNA synthesis; D) block maturation; E) bind to ergosterol 28. Lysogeny is A) an infection by alytic phage; B) a condition when a viral genome is integrated into the host chromosome but does not result in the lysis of the host cell; C) when the infecting phage exists as a prophage; D) caused by a...
ach) 1. Which of the following statements correctly describes one replication? characteristic of the lytic cycle...
ach) 1. Which of the following statements correctly describes one replication? characteristic of the lytic cycle of viral Many bacterial cells containing viral DNA are produced 8) Viral DNA is incorporated into the host genome C) Th e viral genome replicates without destroying the host The bacterial host provides the nucleotides, enzymes, ribosomes and other co requires to make viral components D) 2. What is the function of the viral glycoproteins that are present in an enveloped virus? A) They...
Which of the following among A-D is false concerning animal viruses? A) During the courses of...
Which of the following among A-D is false concerning animal viruses? A) During the courses of an influenza virus infection, flu virus proteins are likely to be found in the nucleus, host cell membrane, and cytosol. B) The type of life cycle an animal virus possesses is mostly determined by its genome type C) Lambda phage can form a prophage; an equivalent animal virus type like this would be a retrovirus D) Interferons are produced by certain hosts to defend...
Which of the following genes would not likely be encoded on a plasmid? O genes encoding...
Which of the following genes would not likely be encoded on a plasmid? O genes encoding toxins that damage host tissue O genes encoding enzymes for the degradation of an unusual substrate O genes encoding antibacterial resistance O gene encoding enzymes for glycolysis QUESTION 7 Infection by rotavirus (dsRNA virus) would trigger an interferon response by the host's immune system due to production of a dsRNA. O True False
Required information The recombination frequency between genes that are located on different chromosomes is 50%, a...
Required information The recombination frequency between genes that are located on different chromosomes is 50%, a hallmark of independent assortment. Genes that are located close together on the same chromosome have a recombination frequency less than 50%, which is an indication of linkage. Complete the following questions to investigate recombination frequency between genes that are far apart on the same chromosome. Two genes on the same chromosome may have no crossover (NCO), a single crossover (SCO), or a double crossover...
You see a recombination frequency of 50% between two genes. Which of the following possibilities can...
You see a recombination frequency of 50% between two genes. Which of the following possibilities can you exclude? That the genes are located close together on the same chromosome That the genes are on different chromosomes O That the genes are assorting independently That the genes are located on the same chromosome, but very far apart Meiosis contributes to genetic diversity by: o Reducing the number of chromosomes for karyogamy (fusion of nuclei) with another gamete O Recombining homologous chromosomes...
1. The 1952 experiment performed by the Lederbergs in which they replica-plated ten million colonies of...
1. The 1952 experiment performed by the Lederbergs in which they replica-plated ten million colonies of TI-phage sensitive E. coli to plates containing high concentrations of TI phase and found a small number of phage-resistant colonies showed that: A) a selecting agent can affect mutation rate in E. coli. B) mutations can arise spontaneously before exposure to the selecting agent. C) mutations in E. coli occur at a relatively high frequency, D) the mutation rate in E. coli fluctuates greatly...
Which of the following statements is true? Chromosomes are the support of the genes. Heredity linked...
Which of the following statements is true? Chromosomes are the support of the genes. Heredity linked to the gender concerns only the X chromosome. The phenotype designates the genetic material of a cell. D The genotype designates the way genes in a cell are expressed.
Instructions: Read each question carefully before selecting the one alternative that best completes the statement or...
Instructions: Read each question carefully before selecting the one alternative that best completes the statement or answers the question in each case and then indicate it on the answer card. Work at a steady pace and you should have ample time to finish the examination. MULTIPLE CHOICE (2 points each) chi Which group of organisms other than viruses is represented by the most number of individuals on earth? Insects b. Bacteria Archea d. Rats e. Earthworms c. A quaint bacteria...
Which of the following is an example of heterochromatin? Group of answer choices The histones Genes...
Which of the following is an example of heterochromatin? Group of answer choices The histones Genes for cell membrane components expressed in many cells The telomere region The arms of the chromosome between the centromere and the telomere Genes for the protein components of muscle that are only expressed in muscle cells
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27. Which of the following is not a mode of action of antivirals? A) block penetration; B) block transcription and translation; C) inhibit DNA synthesis; D) block maturation; E) bind to ergosterol 28. Lysogeny is A) an infection by alytic phage; B) a condition when a viral genome is integrated into the host chromosome but does not result in the lysis of the host cell; C) when the infecting phage exists as a prophage; D) caused by a...
ach) 1. Which of the following statements correctly describes one replication? characteristic of the lytic cycle of viral Many bacterial cells containing viral DNA are produced 8) Viral DNA is incorporated into the host genome C) Th e viral genome replicates without destroying the host The bacterial host provides the nucleotides, enzymes, ribosomes and other co requires to make viral components D) 2. What is the function of the viral glycoproteins that are present in an enveloped virus? A) They...
Which of the following genes would not likely be encoded on a plasmid? O genes encoding toxins that damage host tissue O genes encoding enzymes for the degradation of an unusual substrate O genes encoding antibacterial resistance O gene encoding enzymes for glycolysis QUESTION 7 Infection by rotavirus (dsRNA virus) would trigger an interferon response by the host's immune system due to production of a dsRNA. O True False
Required information The recombination frequency between genes that are located on different chromosomes is 50%, a hallmark of independent assortment. Genes that are located close together on the same chromosome have a recombination frequency less than 50%, which is an indication of linkage. Complete the following questions to investigate recombination frequency between genes that are far apart on the same chromosome. Two genes on the same chromosome may have no crossover (NCO), a single crossover (SCO), or a double crossover...
You see a recombination frequency of 50% between two genes. Which of the following possibilities can you exclude? That the genes are located close together on the same chromosome That the genes are on different chromosomes O That the genes are assorting independently That the genes are located on the same chromosome, but very far apart Meiosis contributes to genetic diversity by: o Reducing the number of chromosomes for karyogamy (fusion of nuclei) with another gamete O Recombining homologous chromosomes...
1. The 1952 experiment performed by the Lederbergs in which they replica-plated ten million colonies of TI-phage sensitive E. coli to plates containing high concentrations of TI phase and found a small number of phage-resistant colonies showed that: A) a selecting agent can affect mutation rate in E. coli. B) mutations can arise spontaneously before exposure to the selecting agent. C) mutations in E. coli occur at a relatively high frequency, D) the mutation rate in E. coli fluctuates greatly...
Which of the following statements is true? Chromosomes are the support of the genes. Heredity linked to the gender concerns only the X chromosome. The phenotype designates the genetic material of a cell. D The genotype designates the way genes in a cell are expressed.
Instructions: Read each question carefully before selecting the one alternative that best completes the statement or answers the question in each case and then indicate it on the answer card. Work at a steady pace and you should have ample time to finish the examination. MULTIPLE CHOICE (2 points each) chi Which group of organisms other than viruses is represented by the most number of individuals on earth? Insects b. Bacteria Archea d. Rats e. Earthworms c. A quaint bacteria...
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