The illustration best describes: A dormant bacterial infection A dormant viral infection An active bacterial infection An active viral infection

Q: Viruses are free-living organisms. Select one: True O False

A: Viruses are usually classified according to their genetic material as DNA virus or RNA virus. The…

Q: A group of pathogens that consist mostly of nucleic acids and that lack cellular structure.

A: Nucleic acids is the main hereditary structure of an organism, it called genome. All pathogen have…

Q: What did experiments using porcelain filters prove? Select all answers that apply. Porcelain filters…

A: Porcelain filters were engineered in the late 19th century by scientists as bacteriological filters…

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: During a routine physical examination, a 50-year-old woman is advised to get tested for a virus with…

A: From all the above clinical correlations we can say that the virus is Hepatitis B. Reasons for the…

Q: Viral receptors are important to viruses because these will allow them to complete their replication…

A: A sequence of events occurs when viral infection occurs that starts from the entry till the…

Q: e pool is unsanitary and causes virus to spread. What should the parents conclude? Choose the best…

A: On the basis of transmission, diseases can be classified into communicable and non-communicable…

Q: Although a virus is very virulent now, it will eventually evolve to become much less virulent.…

A: A virus is a submicroscopic organism that contains genetic information either in the form of DNA…

Q: Coley’s Toxin is really: a mix of harmless viruses. a mix of pathogenic bacteria. a…

A: Coley`s toxins is a mixture consisting of killed bacteria of species Sterptococcus pyogens   ,…

Q: Which of the following statements correctly describes SAR-CoV-2? It is an enveloped, RNA virus that…

A: SARS-CoV-2, severe acute respiratory syndrome coronavirus 2 is a viral strain that is responsible…

Q: All viruses can be grown in cell cultures. True False All viral infections can cause CPE. True False

A: Viruses are obligate intracellular parasites that replicate inside the host cells. Short nucleic…

Q: rna or dna double  strand or single strand linear or circular capsid structure H1N1 viruses (Swine…

A: Virus are infectious, disease causing agent present in air & replicates only in host completing…

Q: A term to describe physical treatments that kill microbes on items or surfaces would be…

A: Microbes are microorganisms that make up a large fraction of the atmosphere. They are present…

Q: provide evidence supporting or refuting the following statement: Viruses are simple cellular agents…

A: Viruses are infectious agents that contain nucleic acids (DNA or RNA) which are covered by a protein…

Q: How are viruses and bacteria similar? They both: (select all that apply) are often beneficial to…

A: The question is asking for the similarities between viruses and bacteria based on the four given…

Q: What virus current, past or new emerging/reemerging virus should he world be most concerned about?…

A: Viruses are very small and can not be seen with a light microscope, except for the poxvirus, the…

Q: Which of the following is a pyrimidine (one type of nitrogenous base) that is commonly found in all…

A: Evolutionary forces impact the dynamic processes of host-parasite interactions, promoting…

Q: A chronic IV drug user is admitted to the hospital after a suspected overdose. During recovery the…

A: Note : Hi. Thanks for your questions. Since, you have posted multiple questions, we will solve first…

Q: Which one of these antibiotics is active only against gram-positive bacteria? Azithromycin…

A: Gram-positive bacteria are a broad category of microorganisms distinguished by their cell wall…

Q: You are evaluating a mold infection of the feet after playing sports for two weeks. Which of the…

A: Q.  In image 1 the correct option is : The patient has a dermatophyte infection. Explanation-…

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: Viruses that have arisen recently and are more likely to cause infection than previous strains are…

A: Virus : A virus is a small collection of genetic code, either DNA or RNA, surrounded by a protein…

Q: All viruses have which components in their infectious particles? Nucleic acids and protein coats…

A: Viruses are usually organisms with acellular structures outside their host. They enter their living…

Q: Is a nucleus cell or virus

A: Nucleus:  The nucleus is a membrane-bound organelle in cell biology that is present in eukaryotic…

Q: What did experiments using porcelain filters prove? Select all answers that apply.    Porcelain…

A: The question is asking about the findings from experiments that used porcelain filters. These…

Q: Simple but creative caption on a poster about noncommunicable diseases caused by having unhealthy…

A: A non-communicable disease (NCD) is a disease that is not transmitted  from one person to another.…

Q: Select all the correct statement(s) about viruses: Viruses exist in one phase both extracellularly…

A: The objective of the question is to identify the correct statements about viruses from the given…

Q: during the history of the discovery of viruses they were first called filterable agents, then they…

A: Beijerinck, in 1898, first discovered virus which are thought to be as connecting links between…

Q: One human disease in the list below is caused by a virus that transcribes its genome into the host…

A: Viral illnesses are incredibly broad diseases brought about by infections, a kind of microorganism.…

Q: The best viral capsids are those that remain intact in any environment. True or false

A: The objective of the question is to determine whether the best viral capsids are those that remain…

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: described

A: Colonization : Presence of bacteria on our body that may or may not necessarily cause harm.

Q: What is example of incubation the duration of time between exposure to an infectious

A: When any microorganisms enters in the body and multiplies in the body then it is called infection.…

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: Pick two that are true. When it comes to infecting eukaryotic cells, viruses are a little different…

A: When it comes to infecting eukaryotic cells, viruses are a little different because: The viruses…

Q: A1 A2 Virus A Family a al a2 Virus B B1 B2 al A1 B1 a2 A2 B2 Sample 1

A: The virochip is the DNA microarray designed to detect all known viruses and to discover new viruses.

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 type of capsid (helical, icosahedral, etc) whether or not it has an envelope any spike proteins…

A: Hepatitis virus has basically five types:- A, B, C, D, E, G Hepatitis- B is the most widely spread…

Q: Hepatitis B Virus is 42nm in diameter. Sacromyces cervisiae (a yeast) has a diameter of 4um in…

A: The living world contains different types of organisms such as bacteria, protozoans, plants, animals…

Q: An 83 year old patient has been ill the past couple of days with an upper respiratory infection. Her…

A: Nursing counselling and advise involves certain intervention which helps process focusing on the…

Q: Match the definition to its corresponding term. Formation of a pilus to allow genetic exchange…

A: Introduction:  The mechanism of gene transfer refers to the movement of genetic information between…

Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.