I need help because i struggled with my homework 14.23) All forms of life can have their cells invaded by viruses. When viruses take over plant or animal cells, we call this a viralinfection. Several human infectious diseases, some of which are chronic diseases, are caused by viral infection. Using fullsentences, explain how viruses infect cells and how the infection spreads to other cells in an organism.

Viruses are small infectious agents that can only replicate inside living host cells. They have a…

Answered: 14.23) All forms of life can have their…

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 22CTQ: The first electron micrograph of a virus (tobacco mosaic virus) was produced in 1939. Before that...

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Similar questions

Why would it be incorrect to refer to the formed elements as cells?
A botanist notices that a tomato plant looks diseased. How could the botanist confirm that the agent causing disease is a viroid, and not a virus?
The first electron micrograph of a virus (tobacco mosaic virus) was produced in 1939. Before that time, how did scientists know that viruses existed if they could not see them? (Hint: Early scientists called viruses “filterable agents.”)
A scientist discovers a virus encoding a Protein X that degrades a subunit of the elF4F complex. Knowing that this virus transcribes its own mRNAs in the cytoplasm of human cells, why would Protein X be an effective virulence factor?
A bacteriophage with a lytic life cycle develops a mutation that allows it to now also go through the lysogenic cycle. How would this provide an evolutionary advantage over the other bacteriophages that can only spread through lytic cycles?
A scientist isolates a new species of prokaryote He notes that the specimen is a bacillus with a lipid bilayer and cell wall that stains positive for peptidoglycan. Its circular chromosome replicates from a single origin of replication. Is the specimen most likely an Archaea, a Gram-positive bacterium, or a Gram-negative bacterium? How do you know?
Many viruses enter host cells through receptor- mediated endocytosis, What is an advantage of this entry strategy? The virus directly enters the cytoplasm of the cell The virus is protected from recognition by white blood cells The virus only enters its target host cell type The virus can directly inject its genome into the cell’s nucleus.
7 Why does incorporation of AZT into viral nucleic acids cause chain termination?
Given the following DNA sequence: 5’-ATGCGGCCAAGGTCAGAGTGACA-3’ a) If this DNA strand represents the “Sense Strand” of DNA, what would be the RNA sequence? b) If this DNA strand represents the “Antisense Strand” of DNA, what would be the RNA Sequence? c) What would be the other strand of DNA?
(52) During the development of a new vaccine , an investigator generates a mutant strain of bacteria that does not adhere to mucosal epithelia in which of the following bacterial components or structures would most likely prevent bacterial adhesion? (A) Capsules (B) Flagella (C) Lipopolysaccharide (D) Lipotelchoic acid (E) Piii (F) Porins (G) Siderophores (H) Spores
1. "One structural form used in building virus particles is based on the icosahedron. Describe, either in words or in a diagram, the organization (number of capsomers, etc.) of the simplest virus particle of this form. 2. If a virus has a negative‐sense RNA genome, what enzymatic activity (if any) will be found as part of the virion, and what will be the first step in expression of the viral genome?"
26. How does the flu virus gain entry into cells? (MARK ALL THAT APPLY) Group of answer choices by slipping through carbohydrate import machinery by cleaving the glycosidic bonds by unloading their genetic material onto extracellular glycoproteins by attaching to ion channels by binding to glycoproteins on the cell surface that are unique to specific cells

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