Which of the following self-replicating biological agents carries only one polynucleotide chain as its genetic material, does not code for any proteins, and does not have any nucleocapsid? the RNA virusoid known as hepatitis delta virusoid the single-stranded RNA virus known as human immunodeficiency virus the double-stranded RNA virus known as rotavirus the double-stranded DNA virus known as pandoravirus the RNA viroid known as citrus exocortis viroid       The human precancerous disorder known as xeroderma pigmentosum is caused by which of the following mutagenic conditions? thymine dimers demethylation deacetylation depurination deamination      7. Who discovered that DNA synthesis in the intact chromosomes of rapidly-growing bacterial cells is continuous on the leading strand, but discontinuous on the lagging strand? Rosalind Franklin and Maurice Wilkins Matthew Meselson and Franklin Stahl Erwin Chargaff and Arthur Kornberg Reiji Okazaki and Tuneko Okazaki James Watson and Francis Crick

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: The 5'-Cap on viral MRNA plays a critical role in: Maturation and stability of the MRNA…

A: The 5'-cap on viral mRNA plays a critical role in : A. Maturation and stability of the mRNA B.…

Q: Which of the following represent why lysogeny is advantageous to a bacteriophage? It allows the…

A: A bacteriophage, also known as phage, is a type of virus that specifically infects and replicates…

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: Why would it be harder to transmit some viruses out of doors?

A: Viruses are microscopic parasites, generally much smaller than bacteria. They lack the capacity to…

Q: /hat is true about the difference between prions and viruses?

A: Introduction:-  Virus is a microorganism that is smaller than a bacterium that  cannot grow or…

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: 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: For a virus to transform a cell, which of the following events must occur: Group of answer choices…

A: The objective of the question is to identify the necessary events that must occur for a virus to…

Q: For an RNA virus, what is the most important consideration? how to produce its genetic material as…

A: RNA viruses need to replicate RNA. Ten this RNA molecule act as viral mRNA. It is translated…

Q: latch each stage of the viral replication cycle with the one definition that best describes it. The…

A: Introduction answer

Q: Even though viruses are known to take over the host cell's metabolism and use the host enzymes for…

A: Viruses show genomic flexibility and almost all RNA viruses are able to change their host mRNA into…

Q: To be considered a virus, a virus MUST… _____be able to insert (recombine) its genes into the main…

A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…

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: 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: 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: The proteins on the surface of envelope viruses generally have to perform a few key tasks,…

A: 1. There has been no evidence that the translation of viral proteins is facilitated by proteins on…

Q: Why would viral genome integration into host cell integration be advantageous to a virus? It…

A: Viruses can be defined as a noncellular entities which consist of either DNA or RNA ,enclosed in a…

Q: BOTH (EU & ARCHEABACTERIA) VIRUSES ARCHEABACTERIA EUBACTERIA Have a protein coat Source of…

A:

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: Why is it a strong evolutionary hypothesis that although viruses are the structurally simplest…

A: Viruses are the acellular entities that are considered as sub-microscopic infectious agents. They…

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: Which biological entity does not contain genes

A:

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: Reverse transcriptase is needed to transcribe which type of viral genome into DNA? dsRNA SSDNA SSRNA…

A: Viral genome - Viral genome is defined as the genome of the virus particles. This genome can be made…

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: The diseases SARS, MERS, and COVID-19 are all caused by what family of viruses? Coronaviruses…

A: Viruses are obligate intracellular parasites that depend on the host for their survival. For their…

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: Which of the following statements regarding viral classification is FALSE? Question options:…

A: all these statements are true

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: Some viruses such as HPV are linked to mutations causing certain types of cancer. What part of a…

A: Human Papillomavirus (HPV) is a group of viruses that infect the skin and mucous membranes of…

Q: Where do I find references to support that viruses are living organisms

A: A virus is defined as a microscopic infectious agent. They can only divide inside the body of the…

Q: Which of the following mushroom-derived molecules is known to block DNA transcription by directly…

A: The mushroom-derived molecule that blocks DNA transcription by directly interfering with the…

Q: Why is it virtually impossible to eradicate (eliminate) a disease caused by a zoonotic virus? Why…

A: Infectious disorders known as zoonotic diseases can spread from animals to people. Animal reservoir…

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.