What structures are found on agar plates when the bacteriophage T4 has penetrated Escherichia coll? O colonies color change no color change O plaques

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Q: Which of the following is not an exotoxin? O LPS O A-B toxin O Leukocidins O Superantigens

A: Hello you have asked multiple questions. We can answer only the first one for rest please repost…

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Q: Why is Micrococcus luteus a common contaminate on bacteriological media?

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Q: Why is the fact that Pseudomonas species can grow in nutrient-poorenvironments medically important?

A: Pseudomonas is defined as a genus of gram-negative bacteria that will belong to the family…

Q: A certain culture of the bacteria stripped her classes and national has 10 bacteria to double every…

A: Bacteria divide by binary fission. This means each cell divides into two identical daughter cells.…

Q: i am responsible for detrmining how many bacteria are in a 100ml sample of milk. 1 pour 1 ml of my…

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Q: Why are disease-causing flagella bacteria considered "dangerous"  What are 5 examples of desease…

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Q: A water sample is boiled for 20 minutes and plated onto nutrient agar. Growth is observed 24 hours…

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Q: Peptidoglycan layer of Gram-positive bacteria is thinner compared to Gram-negative bacteria. O True…

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Q: How do Salmonella cells induce ruffling?

A: Some dramatic actin rearrangements occur on the membrane surface which are induced by the Salmonella…

Q: How would you grow a streptomycin-resistant strain E. coli bacteria was spread on both agar plates…

A: Bacterial resistance does have the capacity where bacteria will withstand the effects of antibiotics…

Q: 20. Some bacilli are known as (AFB) 21. Staphylococci are known as 22. Some bacilli are motile; they…

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Q: DRAW IT A bacterial culture was in log phase in the following figure. At time x, an antibacterial…

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Q: Vernon wanted to determine the colony forming units of bacteria per gram of soil in their soil…

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Q: M. tuberculosis (Mtb) takes about 12h to 18h to do a cell division. This partially explains why it…

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Q: TRUE OF FALSE: Is E coli colonies would be pink mucoid in Eosin Methylene Blue Agar (EMBA)? Is…

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Q: Why are desease causing flagellate bacteria considered "dangerous"? What are 5 examples of desease…

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Q: Why are only the colonies growing close to the mold inhibited?

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Q: 29. Regarding bacterial capsule: A Stained by Gram's staining 8. Stained by Z.N staining C. Always…

A:

Q: Encapsulated bacteria are more virulent than non-encapsulated ones. true O false

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Q: What are the two most common shapes of bacteria?

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A:

Q: A crescent shaped bacterial cell is classified as a

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Q: How much UV exposure did it take to kill almost all of the Serratia Marcescens colonies

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Q: bacterial cell is able to take up DNA from the environment. fertile O virulent O competent

A: Competent cells are those which can accept plasmids or DNA that are extra chromosomal from the…

Q: m Surface Opacity Cell color Cell shape Cell Grouping  G+ or G-

A:

Q: Cocci that occur in clusters or groups are O Streptococci O Staphylococci O Diplococci O Micrococci

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Q: The figure attached shows the colonies on Eosin Methylene Blue Agar (EMBA) plate. Make a description…

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Q: Why are most Gram-negative bacteria resistant to penicillin? endopsores made by Gram-negative…

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Q: Gram Stain is used to differentiate. O 1. Virus O 2. Onion Cells O 3. Blood Cells O 4. Bacteria

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Q: Which bacterium does not contain deaminase enzyme O A. Proteus O B. Morganella O C. Providencia O D.…

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Q: M.tuberculosis (Mtb) takes about 12h to 18h to do a cell division. This partially explains why it…

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Q: Which of the following are antibiotics? X-gal and IPTG haemolysin Escherichia coli pBluescript…

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Q: . Bacterial spores function in bacterial reproduction .  a) True b) False

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Q: Why does Staphylococcus tend to exist in a random clusters? O It divides in the same plane each time…

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Q: You receive a throat culture swab from a 36-year-old male patient who complains of mild fever and…

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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.