Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 21, Problem 20RQ
Which of the following is not associated with prions?
- Replicating shapes
- Mad cow disease
- DNA
- Toxic proteins
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Students have asked these similar questions
Which of the following statements accurately distinguishes
between viruses, prokaryotic cells, and eukaryotic cells?
Viruses are not cellular and require a host to replicate, prokaryotic cells
lack a nucleus, and eukaryotic cells contain a nucleus and other
membrane-bound organelles
Viruses, prokaryotic cells, and eukaryotic cells all contain a nucleus
Viruses and prokaryotic cells are always unicellular, while eukaryotic
cells are always multicellular
Viruses do not contain organelles, while prokaryotic and eukaryotic cells
do
Which of the following are true about bacteriophages (phages)? Select all correct answers.
A phage is Nature's version of a broad-spectrum antibiotic
Phages are virus that destroy bacteria
Phages are a possible alternative to antibiotics
Phages continue to replicate until the target bacteria is eliminated.
Phages kill bacteria by destroying the bacterial RNA as it is produced.
What is true about the difference between prions and viruses?
Viruses have genomes composed of RNA, whereas prions have genomes composed of
DNA.
Viruses have capsids composed of protein, whereas prions are made only of nucleic
acid.
Viruses infect many types of cells, whereas prions infect only prokaryotic cells.
Viruses generally cause disease symptoms quickly, whereas prions generally take many
years to cause disease symptoms.
Chapter 21 Solutions
Biology 2e
Ch. 21 - Figure 21.5 Which of the following statements...Ch. 21 - Figure 21.8 Influenza virus is packaged in a viral...Ch. 21 - Figure 21.10 Which of the following statements is...Ch. 21 - Which statement is true? A virion contains DNA and...Ch. 21 - The viral______play(s) a role in attaching a...Ch. 21 - Viruses. all have a round shape cannot have a long...Ch. 21 - The observation that the bacteria genus Chlamydia...Ch. 21 - A scientist discovers a new virus with a linear,...Ch. 21 - Which statement is not true of viral replication?...Ch. 21 - Which statement is true of viral replication? In...
Ch. 21 - Which statement is true of reverse transcriptase?...Ch. 21 - Oncogenic virus cores can be. RNA DNA neither RNA...Ch. 21 - Which is true of DNA viruses? They use the host...Ch. 21 - A bacteriophage can infect the lungs viruses...Ch. 21 - People with the CCR5?32 mutation of a T-cell...Ch. 21 - An apple grower notices that several of his apple...Ch. 21 - Which of the following is NOT used to treat active...Ch. 21 - Vaccines. are similar to viroids are only needed...Ch. 21 - A patient presents at the clinic with an acute...Ch. 21 - Which of the following is not associated with...Ch. 21 - Which statement is true of viroids? They are...Ch. 21 - The first electron micrograph of a virus (tobacco...Ch. 21 - Varicella-zoster virus is a double-stranded DNA...Ch. 21 - Classify the Rabies virus (a rhabdovirus family...Ch. 21 - Why can’t dogs catch the measles?Ch. 21 - One of the first and most important targets for...Ch. 21 - In this section, you were introduced to different...Ch. 21 - Although plant viruses cannot infect humans, what...Ch. 21 - A bacteriophage with a lytic life cycle develops a...Ch. 21 - Why is immunization after being bitten by a rabid...Ch. 21 - The vaccine Gardasil that targets human papilloma...Ch. 21 - Prions are responsible for variant Creutzfeldt...Ch. 21 - How are viroids like viruses?Ch. 21 - A botanist notices that a tomato plant looks...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Arrange the following list into the correct sequence for part of the cycle of a retrovirus: 1. dsDNA integrated into host DNA 2.viral proteins synthesized on host ribosomes 3. viral DNA uses host enzymes to transcribe viral RNA 4. reverse transcriptase catalyzes synthesis of ssDNA 5. synthesis of second DNA strand (a) 5, 2, 1, 3, 4 (b) 5, 2, 3, 4, 1 (c) 4, 5, 1, 3, 2 (d) 4, 1, 2, 3, 5 (e) 2, 1, 3, 4, 5arrow_forwardWhich of the following statements is not true about DNA replication? a. It occurs during the M phase of the cell cycle. b. It makes a sister chromatid. c. It denatures DNA strands. d. It occurs semiconservatively. e. It follows base-pairing rules.arrow_forwardViruses with negative sense RNA genomes typically, make proteins by: (Ignore retroviruses, and the unusual characteristics of coronaviruses) Translation of short RNA transcripts generated by RDRP Generating a DNA copy, which is then transcribed by host RNA polymerase. Translation of the viral genome by host ribosomes. Production of a polyprotein, which must be cleaved into smaller proteins. Generating a negative sense genome copy, which is then translated by host ribosomes.arrow_forward
- Pick two that are true. When it comes to infecting eukaryotic cells, viruses are a little different because: The viruses lyse themselves more quickly with the aid of bacterial genomes The virion always remains outside the cell envelope The entire capsid can enter the host cell The virus can hide out in special membrane bound areas inside the cellarrow_forwardWhich biological system contains a protein nucleocapsid surrounding 2 antiparallel polynucleotide strands (held together by hydrogen bonds), with deoxyribose sugars, but no ribose sugars? a single-stranded RNA viroid (like avocado sun blotch viroid) a double-stranded RNA virus (like the reovirus family) a single-stranded DNA virus (like fX174 virus of E. coli) a double-stranded DNA virus (like the smallpox virus) a single-stranded RNA virus (like tobacco mosaic virus)arrow_forwardThe genetic material of viruses can come in which form? O Double stranded DNA Single stranded DNA Single stranded RNA Double stranded RNA All of the abovearrow_forward
- The lytic cycle of a bacteriophage can be characterized by A large number of phages are released at a time. The virus-host relationship usually lasts for generations. The viral genome replicates without destroying the host. Viral DNA is incorporated into the host genome.arrow_forwardWhich of the following is a similarity between viruses of bacteria (bacteriophages) and viruses of algae? These viruses will enter host cells by membrane fusion. They infect host cells by injecting nucleic acid (i.e., capsid does not enter cell) After replication in a host cell, the newly-assembled viruses will exit the cell by budding. These viruses are taken into host cells by phagocytosis.arrow_forwardWhich of the following is a difference between a viroid and a virus? O viroids contain some genes important for their own replication while viruses rely entirely on host cell enzymes for their replication viroids are alive and viruses are not O viroids are not infectious particles and viruses often cause disease O viroids are composed solely of nucleic acid while viruses are composed of nucleic acid surrounded by a protein coat O viroids infect only plants while viruses infect only animals and prokaryotesarrow_forward
- Why would viral genome integration into host cell integration be advantageous to a virus? It enables the virus to kill the cell. It allows the virus to infect cells it would not normally infect. It allows the virus to be passed on to future generations of host cells. It allows the virus to destroy the host cell's DNA. It speeds up viral replication.arrow_forwardWhich of the following represent why lysogeny is advantageous to a bacteriophage? It allows the bacteriophage to infect cells it would not normally infect It speeds up the viral infection cycle The genetic material of the bacteriophage is replicated many times over that seen in a lytic phage It enables the bacteriophage to take over the cell and produce a fewer number of viruses that can then burst out and infect other nearby cells It allows the bacteriophage to destroy the host cell's DNAarrow_forwardMisfolded prions are infectious because they: cause other proteins to denature cause other genes to misfold cause other prion proteins to misfold cause many other proteins to misfold cause ribosomes to fall off of transcripts cause other proteins to dissolvearrow_forward
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