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 12RQ
Oncogenic virus cores can be.
- RNA
- DNA
- neither RNA nor DNA
- either RNA or DNA
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Oncogenic virus cores can be_______. a. RNA b. DNA c. neither RNA nor DNA d. either RNA or DNA
Influenza viruses use to replicate its genome whereas retroviruses use before they can integrate their genome into the host DNA.
A.
reverse transcriptase; RNA dependent RNA polymerase
B.
RNA dependent RNA polymerase; reverse transcriptase
C.
replicase; DNA polymerase
D.
DNA polymerase, replicase
what is the genetic material of COVID-19 (the virus currently in pandemic)?
Single-stranded RNA (ssRNA)
Double-stranded RNA (dsRNA)
Single-stranded DNA (ssDNA)
Double-stranded DNA (dsDNA)
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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- The term _________________________________ means pertaining to a virus. viral virilearrow_forwardFigure 17.5 Which of the following statements about virus structure is true? a. All viruses are encased in a viral membrane. b. The capsomere is made up of small protein subunits called capsids. c. DNA is the genetic material in all viruses. d. Glycoproteins help the virus attach to the host cell.arrow_forwardFigure 21.5 Which of the following statements about virus structure is true? All viruses are encased in a viral membrane The capsomere is made up of small protein subunits called capsids. DNA is the genetic material in all viruses. Glycoproteins help the virus attach to the host cell.arrow_forward
- 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_forwardViruses Can Be __________ and Counted in Plaque ____________ .arrow_forwardrna or dna double strand or single strand linear or circular capsid structure H1N1 viruses (Swine flu) andH5N1 viruses (Avian flu) Marburg viruses (hemorrhagic fever) DENV Dengue virusesarrow_forward
- A common characteristic of viruses is that they contain both RNA and DNA in their genome. True Falsearrow_forwardWhich of the following is not a characteristic of viruses that makes them difficult for drug development? They have a very simple structure. They are smaller than the host cells. They use the host's machinery for replication.arrow_forwardTrue or False: 1. Lytic viruses utilize the host’s machines to construct their viral components before bursting 2. While viruses are in the host cell, they can complement their RNA material with a DNA. 3.All viruses can introduce genetic mutation specially those that lyse cells.arrow_forward
- How common is ABV in the USA? In the United States, over half of adults have been infected with ABV by age 40. Once ABV is in a person's body, it stays there for life and can reactivate. Match terms with descriptions based on the text above. You can use an answer more than once or not at all. "Over half of adults have been infected with ABV by age 40." ABV could belong to this group of viruses: A. Human Papilloma Viruses B. Incidence of ABV C. Herpesviruses D. Prevalence of ABV by age 40arrow_forwardAnimal viruses may be grown in living animals or in embryonated eggs. a. True b. Falsearrow_forwardThe Size of Viruses varies from: a. 1-100 nm b. 25-300 nm c. 100-1000 nm d. None of the abovearrow_forward
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DNA vs RNA (Updated); Author: Amoeba Sisters;https://www.youtube.com/watch?v=JQByjprj_mA;License: Standard youtube license