Answered: 3. Label the following elements of the…

3. Label the following elements of the figure below: lysogenic phage, lysogenic cycle, lytic cycle, prophage, phage DNA, bacterial chromosome, and self assembly.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter21: Viruses

Section: Chapter Questions

Problem 3VCQ: Figure 21.10 Which of the following statements is false? In the lytic cycle, new phages are produced...

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Concept explainers

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.

Question

3. Label the following elements of the figure below: lysogenic
phage, lysogenic cycle, lytic cycle, prophage, phage DNA,
bacterial chromosome, and self assembly.

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Figure 21.10 Which of the following statements is false? In the lytic cycle, new phages are produced and released into the environment. In the lysogenic cycle, phage DNA is incorporated into the host genome. An environmental stressor can cause the phage to initiate the lysogenic cycle. Cell lysis only occurs in the lytic cycle.
6- The following diagram shows the life cycle of the lytic virus, the symbol that indicates the stage of bacterial cell explosion and decomposition:
1) Which of the following apply(ies) to Bacillus cereus and Bacillus anthracis? Choose all that apply: a) B. anthracis forms spores while B. cereus does not b) B. cereus is more lethal when it causes an infection c) B. anthracis has extra-chromosomal DNA that makes it more pathogenic d) Despite their similar names, the two are actually not at all related e) The 16S rRNA gene sequences of these bacteria are more than 99% identical, meaning that they are actually members of the same species
In _______, viral DNA becomes integrated into a bacterial chromosome and is passed to descendant cells. a. binary fission c. the lysogenic pathway b. the lytic pathway d. conjugation
explain 4 Lytic and lysogenic modes of reproduction
_________4. It is a bacterial that contains plasmid use to produce desirable proteins for human consumptions A. Bacillus thuringiensis B. E. coli C. Saccharomycetes cerevisiae
2. Please explain the difference between virus and bacteriophage multiplication. Be detailed.
1. Explain why it is NOT possible to treat diseases caused by prions with the same drugs that inhibit nucleic acid replication? 2. Explain how the attachment of viruses to bacterial cells is different from the attachment of viruses to animal cells.
1- which of the following can be used for treating/combating bacterial infections a. targeting spikes or attachment molecules b. phages c. reverse transcriptase inhibitors d. agent that turns ON gene expression e. agents that promote phage conversion 2- can DNA replication result in genetic change? explain asap please
3. Explain how do bacteria infect its host.
1. Besides the virus escaping the cell through lysis or exocytosis what are two other effects a virus could have on the host cell. Give support to your answer with two examples and explanation.
‘’Viruses cannot be grown in standard microbiological culture such as broth and agar. They need to be cultured in the presence of a suitable host such as prokaryotic cells (easiest to grow in the lab), plants and animals because they are unable to reproduce independently in living cells’’.2.1 Briefly, describe the advantages and disadvantages of cell culture.