Reverse transcriptase would most likely be inside which virus? a DNA-based lytic virus an RNA-based lysogenic virus an RNA-based lytic virus a DNA-based lysogenic virus

Q: Which type of virus is shown here? head -capsid - viral DNA -sheath tail tobacco mosaic virus HIV…

A: Viruses are microscopic acellular organisms that form an intermediate group between living and non…

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: Which virus structure is found ONLY in viruses that infect animal cells? Capsid (protein coat)…

A: Introduction A virus is not regarded as a biological thing. It's just a strand of genetic material…

Q: The genome of a virus consists of (a) DNA (b) RNA (c) prions (d) DNA and RNA (e) DNA or RNA

A: Viruses are obligate parasites that can reproduce only inside the host cells. They also do not have…

Q: what is the genetic material of COVID-19 (the virus currently in pandemic)?…

A: COVID-19 is an emerging infectious disease caused by severe acute respiratory syndrome coronavirus 2…

Q: Viral “spikes” are usually involved in    A. Uncoating the virus particle  B. Killing the host cell…

A: The small microscopic organisms that cannot be seen with the naked eye are called microorganisms or…

Q: Which of the following are not DNA viruses?a) Hepatitis B virusb) Influenza A virusc) CMV virusd)…

A: Viruses have diversity in terms of the structure, the method of replication, host and target cells.…

Q: Antiviral drugs that target reverse transcriptase would be used to treat infections caused by…

A: Reverse transcriptase is an enzyme that converts an RNA template into complementary DNA.

Q: In some virus,DNA is synthesised by using RNA as template.such a DNA is called?

A: Deoxyribonucleic acid (DNA) is a molecule composed of two polynucleotide chains that coil around…

Q: Oncogenic virus cores can be_______. a. RNA b. DNA c. neither RNA nor DNA d. either RNA or DNA

A: Oncogenic viruses can infect animals and are proficient at causing cancer. They alter the cell cycle…

Q: Why is earlier to target a single mutant versus multiple mutants in the virus

A: Mutations are the changes in the DNA sequence of an organism which may or may not affect the…

Q: What is a common feature found in all viruses?a. An envelopeb. DNAc. Nucleic acid surrounded by a…

A: Viruses are the small, non-living, and infectious agents having the genome of nucleic acids. They…

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: Throughout history there are many different types of virus that have caused impacts both small and…

A: The impact of viruses and viral infections on human history is described by the social history of…

Q: Please describe each step mentioned in the figure below illustrating retroviral transfer of DNA into…

A: A retrovirus is a virus that has its genetic material in the form of RNA. When a retrovirus infects…

Q: List a method a virus can use to prime DNA а replication and give an example of a virus that uses…

A: Introduction:  Viral replication means formation of viruses into the host cells during infection.…

Q: Please describe each step mentioned in the figure below illustrating retroviral transfer of DNA into…

A: A retrovirus inserts a copy of its RNA genome into the DNA genome of a host cell where its genome is…

Q: Which properties are targeted when scientists develop antiviral drugs? removal of viral MRNAS…

A: The property which must be targeted by the scientists while developing the antiviral drugs is:…

Q: RNA virus populations derive their genetic variation from what process? Transcription from the host…

A: RNA viruses have high mutation rates i.e up to a million times higher than their hosts. These high…

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: Retroviruses, like the HIV, contain an enzyme called reverse transcriptase. Explain the flow of…

A: Introduction: In retrovirus, RNA is used as genetic material. It uses the enzyme…

Q: The rabies virus is a negative strand single stranded RNA virus, simply referred to as (-) ssRNA.…

A: Rabies virus (Rabies lyssavirus in technical terms) is a neurotropic virus that causes rabies in…

Q: Retroviruses are dependent on reverse transcriptase, which does which of the following? Transcribes…

A: Answer- (d) creates a DNA copy of an RNA template In reverse transcription the RNA genome of the…

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: 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: True or false: positive sense RNA strands of viruses are treated like mRNA inside a host cell.

A: The meaning of a nucleic acid molecule, particularly a strand of DNA or RNA, in molecular biology…

Q: a method a virus can use to prime DNA replication and give an example of a virus that uses this…

A: Viral Replication of double stranded DNA proceed in two phases first replication of early phase…

Q: Write down  in order the replication steps of viruses in details

A: Replication of virus involve 5 steps Attachment , penetration , replication , assembly and release .…

Q: All viral genomes contain nucleic acid, either DNA or RNA but not both. Viral replication is the…

A: Viruses are obligate intracellular parasites which depends on host translational and transcriptional…

Q: Give an example of each of the following types of viruses a. Double stranded DNA b. Single stranded…

A: Viruses are intracellular, obligately parasitic, non-cellular, sub-microscopic organisms that…

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: Which one of these is FALSE about viruses? All viruses need a living host to replicate The same…

A: Introduction  A piece of nucleic acid, encased in a protein coat, makes up a virus, an infectious…

Q: Which structure of a virus protects it from degradation, contains its genome, and enables it to be…

A: Virus is a microscopic organism that vary in size and shape and cause harmful infectious diseases.…

Q: All of the following statements correctly describes the properties of Influenza A virus EXCEPT…

A: Influenza A viruses are negative-sense RNA viruses with  single-stranded, segmented RNA viruses. The…

Q: In the virus image below, what is the likely function of the projections seen on the virus particle?…

A: Viruses are tiny nucleic acid units containing either DNA or RNA as their genetic material and…

Q: Explain the difference between the lysogenic and lytic cycle of some viruses.

A: Lysogenic and the lytic cycle are the two cycles of viral reproduction. The lysogenic cycle involves…

Q: A virus would NEVER contain ______________ Select one: a. DNA b. RNA c. Reverse Transcriptase d.…

A: A virus is e a little, fundamental, irresistible operator that can duplicate in live creature cells,…

Q: A new virus has recently been discovered that infects human lymphocytes. The virus can be grown in…

A: Viruses are of two types based on their genetic material present inside their protein capsid. DNA…

Q: Choose one of these Gastro-intestinal Tract viruses below and compare it to influenza list of…

A: Gastrointestinal (GI) tract inflammation known as gastroenteritis can be caused by various viruses.…

Q: How do some bacteria protect themselves against the viruses? protect themselves by making antibodies…

A: A bacteriophage is a virus that infects and replicates within bacteria and archaea .

Q: A patient presents at the clinic with an acute viral infection. Assays that analyze the viral life…

A: Viruses are not living cells, viruses are packs of genetic materials enclosed within a protein coat.…

Q: The genome of which of the following types of animal virus can act directly as mRNA and be utilized…

A: Viruses or Viral particles are of many different kinds. The genetic material may be DNA or RNA . can…

Q: What is the importance of making a hypothetical virus

A: Virus It is a submicroscopic organism. It is an cellular pathogen that causes infections in all…

Q: After a virus has entered its host, what factor usually determines the manner (or steps) in which…

A: The nature of the genome determines how the genome is replicated and expressed as viral proteins. If…

Q: In the lytic cycle of a bacteriophage the host membrane ruptures, releasing many phages. the host…

A: Bacteriophage are those viruses that infect bacteria.

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…

Genetic Recombination

Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.

Microbial Genetics

Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.