Select all the correct statement(s) about viruses: Viruses exist in one phase both extracellularly and intracellularly Some viruses are non-obligate parasites Any viral genome can be directly translated by the host cell's translation machinery Viruses can be classified based on their nucleic acid and shape
Q: Zoonotic viruses cause the same symptoms, with the same severity, in animals and in humans. True…
A: The statement in question is asking whether zoonotic viruses, which are viruses that can be…
Q: Name of virus Papilloma viruses RNA or DNA Double stranded (ds) or Single Stranded (ss) Linear or…
A: Papilloma virus More complex natured virus. Non enveloped. Contain DNA 10% and protein 90%.…
Q: As a general rule, viruses are not considered to be alive based on several reasons. One such reason…
A: Viruses are small, microscopic organisms that contain either RNA or DNA as their genetic material.…
Q: Which of the following human diseases is caused by a virus that requires reverse transcriptase to…
A: The virus is the connecting link between living and non living. Most of the animal viruses are RNA…
Q: HIV - is a virus with RNA as the genomic material - is a retrovirus that reverse-transcribes…
A: HIV (human immunodeficiency infection) is a retrovirus that attacks the host immune system. In the…
Q: Discuss why viruses are not always bad
A: It is true that most viruses have a pathogenic relationship with their hosts, which means they can…
Q: Which of the following is a known characteristic that can lead to genetic changes in some viruses?…
A: viruses need host cell machinery to replicate themselves.
Q: Which of the following statements is TRUE concerning viral envelopes? O Only viruses with envelopes…
A: Introduction:- Viruses are small obligate intracellular parasites, which contain either RNA or DNA…
Q: What large family of viruses causes respiratory infections such as the common cold? Herpesvirus…
A: Viruses are very small infectious agents, hard to see with the naked eyes. Some viruses cause very…
Q: Which of the following is one way a virus can enter the host cell? Depending on the type of virus,…
A: Viruses are nonliving entities that only become living when they find a suitable living host to…
Q: What are two things that are true about all known viruses? Hint: one relates to the virus itself,…
A: virus is a submicroscopic infectious agent that replicates only inside the living cells of an…
Q: TRUE/FALSE All viruses are unable to resist the proteolytic activity (or digestive ordeal) once they…
A: The cells are the smallest structural and functional unit of the body that contain different cell…
Q: Similar characteristics of groups of viruses make up a of viruses.
A: Viruses are infectious agents that hijack the cellular machinery of the host cell to form more of…
Q: Give some example of animal viruses.
A: Viruses are microscopic agents that can replicate only inside host cells. They can infect all types…
Q: Viruses are one of the three domains of life. O True O False
A: The only place a virus can replicate is inside the living cells of an organism. Viruses are…
Q: Match terms with descriptions based on the text above. You can use an answer more than once or not…
A: The terms prevalence and incidence are used to characterize the magnitude of a condition in a…
Q: How do emerging viruses arise? by the spread of existing viruses to new host species by mutation of…
A: A virus is a tiny parasite that cannot reproduce itself. Once infected with the affected cell, the…
Q: You are working as a virologist for the CDC. In your work you spend much time searching for new…
A: A virus is a microscopic infectious agent that consists of genetic material, either DNA or RNA,…
Q: The different major groups of viruses (families) differ in: host range. the type of genetic…
A: Introduction Virus is composed of viral capsid which is composed of proteins which also acts as…
Q: Which group of viruses have genetic material that can be directly transcribed and translated…
A: Viruses are on the border of the biotic and abiotic world. These are genomic particles either DNA or…
Q: coronaviruses (CoVs) enveloped DNA viruses that contain all the genetic information requied to…
A: Viruses are simple, noncellular entities consisting of one or more molecules of either DNA or RNA…
Q: Which of the following components of a virus is NOT encoded by its own genome? O capsid of HIV O…
A: HIV (Human Immunodeficiency Virus) is a retrovirus that primarily infects human immune cells,…
Q: Which one of the following is not true for virus, obligate intracellular parasites? Viruses…
A: Virus is an infectious agent that replicates only inside the living cells of an organisms.They are…
Q: TRUE or FALSE: All icosahedral viruses are enveloped. - Bacteriophages containing icosahedral…
A: The virus capsid is the protein coat that encloses and protects the genetic material (DNA or RNA) of…
Q: The lytic cycle of a bacteriophage can be characterized by A large number of phages are released at…
A: Virus gains entry into the host cells. A bacteriophage is a virus that attacks bacteria. According…
Q: Why do we use such terms as infectious particles, agents, or active or inactive when referring to…
A: Viruses are microscopic organisms. They are obligate parasites as they do not have their own…
Q: Which one of the numbers below is the minimum number of capsomer proteins to make a spherical virus?
A: The correct option is - 60
Q: Which of the following is NOT a characteristic of viruses? they are smaller than prokaryotic cells…
A: Viruses have a simple structure made up of a nucleic acid (DNA or RNA) enclosed with a protein coat.…
Q: Define and describe prions, including their replication process and contrast them with viruses.
A: A prion is a type of protein that can trigger normal proteins in the brain to fold abnormally. Prion…
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- Which 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.Which of the following statements are correct for a class V ssRNA (-) virus? it uses its genome directly for translation it must make the complementary (+) RNA strand to synthesize more of its genome it replicates its genome via classical semiconservative replication it converts its genome to DNA via reverse transcriptase as part of its life cycleWhat determines the host range of a virus? the proteins in the host's cytoplasm the enzymes carried by the virus whether its nucleic acid is DNA or RNA the proteins on its surface and that of the host
- Viruses display all the characteristics of living organism but many scientists do not consider viruses as living organisms because of their size. True FalseWhat are the characteristics of bacteria? What are the characteristics of viruses? Be specific in describing the size, structure, shape, and reproductive cycle of each.What allows the membrane of the HIV and the membrane of the host to fuse? The virus capsid dissolves in the phospholipid bilayer of the host cell membrane The virus contacts proteins on the cell membrane of the host, and then the viral proteins undergo conformational changes The virus docks at a pore, which then pulls the virus into the cell membrane due to molecular attractions
- After a virus has entered its host, what factor usually determines the manner (or steps) in which the viral genome is copied and the viral enzymes are produced? the size of the virion the number of infecting virus particles the type of viral genome the type of viral capsidRank from biggest to smallest in terms of genome size: Eukaryotic pathogens RNA Viruses (without proofreading) Bacterial pathogens dsDNA viruses RNA viruses (with proofreading, like coronavirus)