Why is a webbed plate capable of producing a higher lysate titer (pfu/mL) than a cleared plate? a.) A webbed plate has plaques that have gone through more rounds of replication because the number of host cells did not limit phage replication, creating exponentially more phage particles b.) A webbed plate has no more host available for replication, meaning the plate is full of exponentially higher amounts of phage c.) A cleared plate has less bacteria than a webbed plate, so there are more plaques present d.) A cleared plate contains more phage than a webbed plate because it started with a more concentrated phage sample

Q: Which of the following events occurs in the lytic cycle of bacteriophage T4 infection but NOT in the…

A: The viruses that infect bacterial cells are referred to as bacteriophages. There are two types of…

Q: How is a provirus related to disease symptoms?         A-the provirus continually lyses cells,…

A: A virus, an unseen microorganism, infiltrates our body. It infiltrates our tissues and then…

Q: What method is used by bacteriophages to release from the infected host cell? O 1) budding O 2)…

A: Answer is option 4.)lysis.

Q: Some phages have a modified replication cycle in which infected host cells continue to grow and…

A: The viruses are considered to be non-living when they are out of the host as they lack cellular…

Q: As a general rule, viruses are not considered to be alive based on several reasons. One such reason…

A: Viruses are small, microscopic organisms that contain either RNA or DNA as their genetic material.…

Q: A vaccine that employs a toxoid is based upon a ______. A) antibody B) attenuated virus C) histamine…

A: A vaccination is a pharmacological substance that enhances a person's resistance to specific…

Q: 40) The molecular forces that hold the proteins of a capsule together are covalent bonds. True or…

A: The topics covered include chromosomal dynamics in the cell cycle, the historical background of gene…

Q: The five stages of the bacteriophage lytic cycle occur in this order:a. penetration, attachment,…

A: A virus is a submicroscopic organism which contains genetic information either in the form of DNA…

Q: Consider the phase variation of flagella in Salmonella. Describe the phenotype of a cell in which…

A: Understanding the genetic regulation of flagellar phase variation in bacteria, such as Salmonella,…

Q: Which is the usual order of a viral replication cycle when it is making new virions? O Host…

A: Viruses are the obligate parasite. They require host cell to complete their cycle from the…

Q: Which type of phages can perform   generalized transduction?

A: Zinder and Lederberg in 1952 discovered Transduction in S.typhimurum. The phage which mediated DNA…

Q: Indicate whether each statement applies to the lytic or lysogenic cycle of phage A, or to both. 1.…

A: The cyclic reproduction mechanism, by which virulent bacteriophage produces progeny virus by…

Q: Oncogenic viruses may either carry oncogenes within their genome, or affect native within the cells…

A: RNA VIRUSES:- These are those viruses whose genome is made up of Ribonucleic acid (RNA). They use…

Q: Assume you isolate a single stranded (+) RNA virus. When you examine the proteins in the virus, you…

A: RNA-dependent RNA polymerase  or RNA polymerase or replicase  is an enzyme that catalyzes the…

Q: During the lysogenic cycle of lambda (A) phage the phage genome is integrated in the host chromosome…

A: Bacteriophage are those viruses which are found to be in fact to the bacterial cell.

Q: A phage that reproduces slowly, produces relatively few phage particles, and only undergoes the…

A:

Q: 27. Class VI animal viruses include HIV. Based on the type of viral genome, how is this class…

A: Group 6 animal viruses are single-stranded so option A is wrong.

Q: Which of the following is NOT a feature of genetic reassortment? A)  a host cell is coinfected with…

A: Genetic reassortment is the changes in the genome of the virus that affect the host. This helps in…

Q: 10) If the bacterium Staphylococcus aureus experiences a cost for maintaining one or more…

A: Staphylococcus aureus becomes drug-resistant. Genetic mutation is the process that decreases…

Q: The diagrams below represent nucleic acid genomic material and a finished product after the viral…

A: let's break down the reasoning behind identifying the viruses based on the provided diagrams and…

Q: Which of the following statements is true for a retrovirus? a) It contains both RNA and DNA. b) It…

A: Introduction  Viruses are small infectious agents that can replicate only inside the living cells of…

Q: 28. Class VI animal viruses include the retroviruses such as HIV. What type of enzyme does HIV…

A: The correct option is A) Reverse transcriptase. When the HIV has gained entry, the introduction of…

Q: What two different DNA viral infections can be identified with a Papsmear? Explain what…

A: Infection is defined as the state of invasion on the body tissues of an organism, which is caused by…

Q: Lysozyme and the antibiotic penicillin have similar mechanisms of action in that they both cause…

A: To find: What do Lysozyme and the antibiotic penicillin cause damage to?

Q: In the mid-1990s, researchers discovered an enzyme in HIV called protease. Once the enzyme's…

A: The substances that inhibit the activity of enzymes are called enzyme inhibitors and the mechanism…

Q: You are studying your favorite (hypothetical) bacteriophage named M277. It infects E. coli and stays…

A: *Viruses are specific in their species and they will effect every species on earth *The lytic cycle…

Q: Put the following stages of a lytic replication cycle in order, from earliest to latest stages: I.…

A: Lytic cycle is one of the two cycle of viral reproduction which involves the lysis of the host cell.…

Q: You have been hired by a major pharmaceutical company to develop a new vaccine to prevent COVID-19…

A: Virus comes from the Latin word venom which mean poisonous substance that may cause some serious…

Q: The induced clones are developed by ________ into the host cell.a) Nuclear transfer b) Gene transfer…

A: Introduction: Cloning is a process by which genetically identical cells can be produced either…

Q: The contents of a plaque may not always contain a clonal population of phage if: a. Identical…

A: Plaque:- phage infected bacterium usually burst and releases a number of daughter phages which…

Q: The flu virus in flu vaccines is a dead virus. The term to describe the virus in this situation is…

A: Correct answer is B