According to their genome structure, the following viruses are correctly classified EXCEPT? a. Rabies viruses : : Linear Single -stranded RNA b. Retroviruses : : Linear Single -stranded RNA c. Papilloma viruses : : Circular Double -stranded DNA d. Small pox viruses : : Circular Double -stranded DNA

Q: In the Baltimore Classification of Viruses, viruses with a genetic material in the form of RNA are…

A: The virologist and Nobel laureate David Baltimore established the Baltimore method of virus…

Q: A researcher, studying two different animal viruses (A and B) that infect the same cell type,…

A: Viruses are non-living infectious agents that can replicate only within the living cells of a host…

Q: What is the function of reverse transcriptase in retroviruses? O A. It converts host cell RNA into…

A: Retroviruses are positive sense single stranded RNA viruses which replicate inside the host cells.…

Q: According to origin-of-life scenarios proposed by William Martin, Michael Russell, and Theodor…

A: Genetic molecules are the biomolecules that represent the genetic material of the organisms. The…

Q: Which of the following statements concerning viruses and human health is false? a-in many diseases…

A: A virus is a little collection of genetic material that can be either DNA or RNA and is protected by…

Q: Influenza Virus has a    genome and can jump hosts easily because of its genome   A. DNA;…

A: Virus is a microscopic organism which contains a protective coat and the nucleic acid. It doesn’t…

Q: A virus is isolated, and individual virions appear spherical. What type of virus is this? A.…

A: The essential construction or structure of a virus is comprised of a hereditary information molecule…

Q: Why do you think washing hands with soap and water can help fight against coronavirus?(hint Think…

A: Coronaviruses are a category of RNA viruses associated with birds and mammals that cause infections.…

Q: Do you see any potential problems with inserting pieces of a retroviral genome into humans? If so,…

A: Retroviral-mediated gene transfer is the main to gene therapy development. These have various…

Q: Why do scientists worry more about new strains of viruses like influenza and coronviruses as…

A: Answer: Influenza and CoV are RNA viruses which results in having higher mutation rates -- they can…

Q: Upon learning the distinguishing characteristics of living organisms, would you consider viruses to…

A: Viruses can be considered as living because they contain nucleic acids, such as DNA or RNA,…

Q: Which of the following refer/s to viruses? A. They are disease-causing. B. They contain DNA or…

A: Introduction: Viruses are non-cellular microscopic particles that can replicate inside the living…

Q: Which of the following is not true of viruses? O A. They have a prokaryotic cell structure B. They…

A:

Q: The relative amounts of each nitrogenous base are tabulated here for four different viruses. For…

A: Viruses are microscopic agents that can replicate only inside host cells. They can infect all types…

Q: Which of the following descriptions correctly identifies a main structural difference between…

A: Viruses are generally considered as borderline of life as they has non-living nature outside a…

Q: Which of the following is common in animal viruses but NOT in bacteriophage? a. DNA b. Capsid…

A: The term bacteriophages means the "bacteria eating virus". They are those viruses that infect and…

Q: Give any two differences between DNA and RNA. (b) What is recombinant DNA? Give two beneficial…

A: Differences between DNA and RNA DNA RAN Double stranded Single stranded Consists of…

Q: After attachment and entry, the next step of viral lifecycle is to…

A: To complete their life cycle, the viruses require a host cell. This is due to the fact that they…

Q: The envelope of an enveloped virus is derived from a. The lysosome of the cell b. The cell membrane…

A: A virus in an envelope or outer covering. The infected cell, or host, produces this envelope via a…

Q: Which of the following happens to the viral nucleic acid during a lysogenic cycle cycle? a-the viral…

A: In case of lysogeny , viral DNA ingrated into host's DNS. That means integration of…

Q: Viruses are not considered to be alive because: (choose all that apply) A. They do not grow B.…

A: Option-B is correct.They cannot reproduce on their own. Viruses are considered as living as well as…

Q: An experimental drug therapy to treat patients with antibiotic-resistant bacteria involves…

A: phage therapy depends on the choice of phage/s. a cocktail of multiple phages that display a wider…

Q: Coronaviruses have a positive-sense single stranded RNA genome. a.) What is the genome replication…

A: The positive sense single stranded RNA virus can replicate only with the help of host cells. In…

Q: Can viruses evolve?

A: Viruses are small, obligate, intracellular particles that lack the machinery to generate energy for…

Q: Which of the following statements is not true?        Select one: a. Viruses multiply inside…

A: Answer- Viruses are composed of viral protein coat called as Capsid and internal genetic material.…

Q: Why don’t scientists usually consider viruses living? A.They do not have DNA  B.They do not have…

A: The cell is the basic structural and functional unit of life. It carries out various functions in…

Q: Which of the following is a property of life that viruses lack?

A: Virus Viruses are microscopic organisms that only live and reproduce in side Living host body.  Most…

Q: A (+) Sense virus makes a negative sense copy of its genome. Part of the (+) Sense genome has the…

A: A virus is classified as a DNA virus or an RNA virus depending on whether it possesses DNA or RNA…

Q: A complete functional virus that has the capacity to infect the living tissue.        A. NOTA B.…

A: The organisms that infect the other organisms or cells are called pathogens. Bacteria can infect…

Q: dsDNA viruses can have more genetic material than SSRNA viruses because: a. RNA catalyzes its own…

A: Deoxyribonucleic acid (DNA) is a hereditary molecule that passes genetic information from one…

Q: Choose the correct answer : Human Papillomaviruses are characterised by all of the following…

A: The HPV is termed as the human papillomavirus. The infection caused by this can be transmitted from…

Q: particular animal virus requires the use of DNA polymerase from its host, since it does not possess…

A: A virus is a pathogenic microorganism that is found everywhere on earth. Viruses cause infection in…

Q: Regarding enveloped viruses, which of the following is true of the viral envelope? A. It has the…

A: Enveloped viruses have a lipid membrane coating. Viruses with a lipid membrane are those that have a…

Q: what event occurs in bacteriophage multiplication that does not occur in animal virus…

A: A bacteriophage is a virus which infects bacteria and replicates within the bacteria. It is also…

Q: Which of the following is characteristic of all viruses?   A. A protein capsid.   B. a viral…

A: Viruses are classified as non-cellular, tiny infectious agents. They can only replicate inside the…

Q: Because viruses lack some of the traits seen in all living things, many scientists do not believe…

A: Viruses are infectious agents and the name is derived from a Latin word, which means poison or a…

Q: According to Capsid structure, which among the following pairs is CORRECTLY matched? a. Mumps…

A: Capsid is the protein coat of a virus. It encloses the viral genetic material. It made up of several…

Q: Viral tropism refers to: A: The variety of organisms that the virus can infect B: The types of…

A: The cellular and host tropism of viruses is among the most essential and notable properties of…

Q: Researchers have recently discovered giant viruses that are 1 μm in length, the same size as some…

A: All living organisms must perform the basic functions of life process that are necessary for…

Q: Which of the following does NOT inititiate DNA synthesis ? (correct answer e) a. a single-stranded…

A: Deoxy ribo nucleic acid (DNA) is the genetic material of most organisms and it contains coded…

Q: Which of the following enzymes helps the +sense RNA virus Poliovirus to make multiple copies of its…

A: Introduction:- Poliovirus is a type of the Enterovirus C species, which belongs to the…

Q: Which of the following does NOT inititiate DNA synthesis?   a. a single-stranded DNA virus.  b. a…

A: The viruses can be classified into 3 classes based on the type of genetic material they carry. They…

Q: After a positive strand RNA virus ( Such as Coronaviruses) enters the host cell, the RNA is…

A:

Q: Which viruses have potential for the highest mutation rates, DNA or RNA viruses? Explain

A: DNA viruses and RNA viruses have deoxyribose nucleic acid and ribonucleic acid, respectively. These…

Q: If you were to argue that viruses are living organisms, what features of viral structure and…

A: INTRODUCTION Viruses It is a small submicroscopic organism replicate only in a host. Virus always…

Q: The life cycle of which of these viruses depends on reverse transcriptase? A)HPV, a DNA virus…

A: To find  The life cycle of which of these viruses depends on reverse transcriptase

Q: Rank from biggest to smallest in terms of genome size: Eukaryotic pathogens…

A: The size genome  of eukaryotic pathogens ranges from 10 Mb to > 100000 Mb. The size genome  of…

Virus

Viruses are infectious microscopic agents that can only reproduce in live cells of animals, plants, or microbes and are smaller than bacteria. Vertebrates, invertebrates, plants, protists, and fungi are among their many hosts. Viruses are unable to multiply on their own due to the lack of necessary cellular machinery, but they can guide the cell machinery of a host to make additional viruses by infection. The virus enters and attaches to a particular host cell, injects its genetic material, and reproduces by using the host’s genetic material. Viruses cause infection by taking entry into the host cell and using the host cell’s enzymes and raw materials to multiply.