12. How do bacteria move around? What is chemotaxis? Phototaxis? What are bacterial H-antigens? Can flagella be arranged in different ways on different bacterial species? Is the bacterial flagellum constructed the same way as the eukaryotic flagellum or are they completely different tуpes of structures?

Q: The genetic material of virus includes (a) only RNA. (b) only DNA. (c) RNA and DNA both (d) RNA or…

A: The genetic information carried by the genetic material in plants, animals, humans and transmits the…

Q: Why are viruses with lipid-containing envelopes relatively susceptible to certain biocides?

A: Virus  Viruses are the infectious particles that contains either DNA or RNA as a genetic material.

Q: V OUR RELATIVE SIZES Rabies Influenza HIV Coronavirus TMV Papillomavirus Zika T7 virus Adenovirus…

A: According to the image and featuresInfluenza virusCorona virusHIV virusHere are the approximate…

Q: In a petri dish with solidified agar with escherichia coli, enterobacter aerogenes and…

A: If lytic T4 bacteriophage initiates its infection by binding OmpC protein and lipopolysaccharide on…

Q: Question 10 What is the cause of Variant Creutzfeldt-Jakob disease? O Avirus causes VCJD. O A…

A: We know that Creutzfeldt Jacob is a disease rare and fatal disease and that affects the brain. It…

Q: The experiment shown above was designed by Row A B. C D. i Hershey & Chase Hershey & Chase Meselson…

A: In the year 1952, two geneticists- Alfred Hershey and Martha Chase, conducted series of experiments…

Q: How is this flagellar protein H antigen useful to those working in a medical laboratory ??

A: Bacteria such as Salmonella look similar under the microscope but they can be divided into many…

Q: Why have HIV protease inhibitors such as retinovir have been formulated into soft gelatin capsules?

A: HIV protease is antiretroviral drug. The medicine works by inhibiting the activity of HIV protease…

Q: How does having a capsule increase the virulence of a bacteria cell?   A capsule gives bacteria…

A: Certain bacteria possess an additional outer covering beyond their cell wall. This outer covering is…

Q: Why would we be looking at viruses under a microscope in microbiology? and how does that answer…

A: A virus is a small infectious agent that replicates only inside the living cells of an organism.…

Q: 1.) Your roommate has noticed that you now spend most of your time studying microbiology and has…

A: Introduction  A cell is the basic unit of life and the smallest unit of an organism that can carry…

Q: You extract B cells and dilute the cells so there’s one B cell in each well of a 10-well plate. You…

A: Animal physiology is the systematic study of the supporting features, roles, and processes of…

Q: 3) What is the effect of time on the bacteriocidal effects of UV? The effect of distance?

A: The term bacteriocidal refers to the any compound, method or technique of prevention of growth of…

Q: A bacterium that has an F plasmid is able to do which of the following? Group of answer choices…

A: A)  A bacterium that has an F plasmid is able to form conjugation tubes and pass on their DNA to…

Q: Which of the following is true of Generalized transduction? O creates defective virions that are…

A: Generalized Transduction: The bacteriophage first infects the donor cells and begins the lytic…

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.