1. Bacteria can mate by conjugation. 2. In viral replication, viruses always burst out of infected cells, causing cell lysis. 3. Plasmids often spread resistance genes between bacteria.

Q: 23. Plasmids _________.   A. exist independently of the bacterial chromosome   B. are common in…

A: Bacterial genome can be chromosomal or extrachromosomal in nature.

Q: Analogies  DNA or RNA : Virus:: A. capsid : viral envelopes B. RNA : DNA C. White blood cell: Hiv…

A: DNA or RNA are the two types of nucleic acids.

Q: 1x104. Student 1 claimed that the virus caused the bacteria to to become resistant, while student 2…

A: Virus or bacteriophage infection in E. coli will initially result in death of the bacterial cells.…

Q: 2. Which of the following structure is found in fungi but not in eubacteria? A. Cell wall B. LPS C.…

A: According to Bartleby guidelines , we are supposed to attempt first question in case of multiple…

Q: 7. Penicillin is one the first antibiotic ever discovered, and has been used since the 1940s. a.…

A: Sir Alexander Fleming, a bacteriologist discovered Penicillin accidently while working in a…

Q: 9-What group of antibiotics interferes with the DNA-replicating enzyme DNA gyrase? 10-How do azoles…

A: Introduction: Azole antifungal drugs can be used to treat athlete's foot, onychomycosis (fungal nail…

Q: Viruses contain either DNA or RNA. Viruses possess their own metabolic system      a. FIRST…

A: Both the RNA and DNA are nucleic acids that are made up of nucleotides. They are classified as…

Q: - As you wait in line to check out at the grocery store, you notice a magazine with the following…

A: "Viral disease are no longer danger to humans; Vaccines protect people from all viral disease" In…

Q: 1.Explain how Toxoplasma gondii is the most successful parasite in the world.  Explain the roles of…

A: A primary host is the organism that a parasite or other organism needs to reach sexual maturity and…

Q: 1- which of the following can be used for treating/combating bacterial infections a. targeting…

A: Bacteria are unicellular organisms, having sizes of 0.5 micrometers to 2 micrometers. They cause…

Q: What do you think would happen if the saliva treatment of thestarch (cracker) was conducted under…

A: Enzymes are the molecules that speed up the rate of biological reactions. They work at a specific…

Q: 7. Some toxins block the synthesis of mRNA or proteins. Why would this effect be toxic, and how…

A: mRNA is the intermediate molecule between DNA and protein, carrying the genetic information encoded…

Q: What happens during the lytic cycle of viruses? A large number of phages are released at a time.…

A: A bacteriophage is a virus that attacks bacteria. According to the situation it replicates by the…

Q: Biology 4. What is the survival and reproductive advantage for viruses that have a lysogenic or…

A: Viruses are very ideally defined in this they're purported to ve selective about selecting hosts and…

Q: In general, RNA viruses multiply in the cell __, and DNA viruses multiply in the cell __. a.…

A: Viruses are microscopic organisms that cannot be seen with naked eyes. The most unique nature of the…

Q: Which protein has the function of making sure that the viral genes can be completely transcribed?…

A: The study of the processes of heritable knowledge in viruses, such as genome structure, replication,…

Q: When phage nucleic acid is incorporated into the nucleic acid of itshost cell and is replicated when…

A: A virus has genetic material that can be deoxyribonucleic acid (DNA) or ribonucleic acid (RNA)…

Q: Bacteriophage-viruses infect Select one: O a. Virus O b. Prokaryotes C. Bacteria

A: D-Herell give the term of Bacteriophage . Bacteriophage are the virus that infects the bacteria.

Q: 2. Microbes also acquire genetic variation through transformation, transduction, and conjugation…

A: Introduction :- Variations are the differences between individuals of different species .Variation…

Q: What is genetic recombination? There are three processes among prokaryotes that result in…

A: Genetic recombination occurs by the reshuffling of the genes resulting in new combination.

Q: 15. In the lytic cycle, O Viral DNA combines with the host cells DNA O The host cell breaks [lysis]…

A: There are two cycle of viral reproduction: Lytic Cycle: It results in destruction of infected cell…

Q: Chapter 7 compared chromosomes to cookbooks and genes to recipes. How could you incorporate viruses…

A: Chromosomes is a long DNA molecule with part or all of the genetic material of an organism.

Q: 6. The uptake of DNA into the bacterial cell is facilitated by_ a. Calcium chloride b. Magnesium…

A: DNA is an organic molecule that includes genetic information as well as instructions for protein…

Q: 3. If genes for bacterial antibiotic resistance are spread via plasmids, which process is involved?…

A: Gene transfer refer to the movement of genetic information between organisms. Gene transfer can be…

Q: 4. DNA replication includes events 1 to 5. 1. Opposite strands are separated 2. Free DNA nucleotides…

A: Note: According to the guidelines, we are supposed to answer only 1st question. Please repost other…

Q: 3. What might happen to a cell whose DNA is destroyed? What might happen to a cell whose DNA is…

A: Cell whose DNA is damaged- Every cell in our body's DNA is continually at risk of being damaged.…

Q: 26. Which of the following are TRUE for plasmid? It is a ring of single stranded DNA. It is found in…

A: Natural selection is the phenomenon in which an organism having heritable variation are selected and…

Q: Viral structure can best be described as a ___.

A: Viral structure is not well defined.

Q: Part 1. Transduction is a form of horizontal gene transfer that involves viral infections. random…

A: There are types of horizontal gene transfer -  Transformation Transduction Conjugation

Q: Explain how do bacteria infect its host.

A: Bacteria (sometimes referred to as germs) are microscopic organisms that are invisible to the naked…

Q: Chemicals used in transferring of pure DNA to plant cell is

A: When DNA enters into plant cell then it leads to formation of transgenic plants. This technique is…

Q: All viruses have which components in their infectious particles? Nucleic acids and protein coats…

A: Viruses are usually organisms with acellular structures outside their host. They enter their living…

Q: 1. The physical factor influencing water entry into and exit from cell interior resulting in…

A: Introduction A pathogenic bacterium, or microbial cell, is a living entity that is too small to see…

Q: 3. Briefly describe the cytogenetic method that was used in the following photo. A 3 X Y

A: In situ hybridization methods are used for accurate localization of specific DNA segments by using…

Q: why are bacteria becoming more resistant to antibiotics ? * a- Bacteria are changing and evolving b-…

A: Bacteria reproduce very fast and their replicative fidelity is way better than human DNA…

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

A:

Q: Viruses ____. A. all have a round shape B. cannot have a long shape C. do not maintain any…

A: Viruses differ in terms of structure, replication method, host and target cells. Viruses are…

Q: 4. Can you cure viral pneumonia?

A: Viral pneumonia is a term used to describe infection of lungs which is caused by a virus.An Example…

Q: Does the fact that viruses can form crystals imply that viruses might be alive?

A: A virus is a small collection of genetic material , either DNA or RNA, surrounded by a protein coat.…

Q: 31. In the theory of endosymbiosis, the original host cell that engulfed and aerobically respiring…

A: Endosymbiotic theory The endosymbiotic theory explains the origin of mitochondria and chloroplast.…

Q: - If the virus escapes the containment facilities (even though it has not done so yet), it might…

A: Introduction:- An influenza pandemic is a worldwide outbreak caused by a new influenza virus with…

Q: 9. Explain about Detoxification by conjugation.

A: Detoxification by conjugation is an important process by which the body converts toxic substances…

Q: 5. The short term union of bacterial cells for the unidirectional transfer of DNA from a ‘donor’ to…

A: ▪︎Bacterial conjugation  is one of the major known modes of genetic exchange between bacteria.…

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.