E. coli

Q: Is it important to have fewer phages than bacterial host cells when doing a quantitative plaque…

A: A virus is an infective agent, which is sub-microscopic in nature. It has the capability of…

Q: How did Hershey and Chase show that DNA is passed to new phages in phage reproduction?

A: The deoxyribonucleic acid is the genetic material that is passed from one generation to the next…

Q: What is a non conjugative plasmid?

A:

Q: What is the main problem with retroviral vectors?

A: Retroviral vectors are created by removing replication and disease-causing genes from the virus and…

Q: Why is it usually more difficult to select recombinants withArchaea than with Bacteria?

A: Archaea are single celled-microorganisms and they are prokaryotes. They comprised of a single…

Q: What is the role of sex pili during conjugation?

A: When genetic information is transferred from donor cell to recipient cell with the help of a bridge…

Q: Explain in molecular terms how a bacterial cell is made lysogenic by a temperate phage such a lambda

A: Introduction :- Lysogeny is the process in which a temperate phage, such as lambda, infects a…

Q: What functions must a plasmid encode to be self-transmissible?

A: A plasmid that codes for its own mating pair formation (MPF) genes is called self transmissible or…

Q: When does spontaneous mutation occur? A. a DNA base is an unstable tautomeric form as the…

A: Induced mutation occur after treatment of organism with mutagen. Spontaneous mutation occur as a…

Q: S. aureus is gram positive. What differences in strains might account for differences in phage…

A: Bacteria are microscopic single-celled organisms that thrive in diverse environmental conditions.…

Q: The F plasmid encodes which two functions essential for conjugation?

A: Plasmid encodes the Synthesis of F pilus and several other proteins required for Conjugation. Plasma…

Q: Why might it be advantageous for a bacterial cell to receive the F plasmid from another cell?

A: The F plasmid, the fertility factor is a large plasmid that consists of genes that allow the…

Q: How many bacteriophage particles were isolated from a single plaque? Howmany different strains of…

A: Bacteriophages, which are mainly infected bacteria are going through the lytic or the lysogenic…

Q: What is the difference of mRNA vaccines for COVID-19 (e.g. Pfizer and Moderna) vs the conventional…

A: Introduction  Vaccines are substances designed to mimic a specific infectious agent, such as a virus…

Q: Why is formation of the replicative form of fX174 necessary inorder to make phage-specific mRNA?

A: DNA is the genetic material in most of the organisms. It is mostly double-stranded but some viruses…

Q: In what ways does conjugation create bacterial cells that are at least partially diploid? Is this a…

A: Conjugation is the process of transfer of genetic material from one bacterium to another by direct…

Q: After sequencing E.coli ROAR340 strain and using Silico Clermont Phylotyper tools show that is it…

A: Escherichia coli, also known as E. coli, is a gram-negative, facultative anaerobic, rod-shaped…

Q: there

A: The corona virus is a SARS-CoV2 virus is transmitted through the viral droplets which get released…

Q: What are Bacterial Plasmid Vectors ?

A:

Q: A protocol calls for 10^3 phage particles as starting material. How much of your phage suspension…

A: Bacteriophage -- Phage means to eat .Bacteriophages are viruses which infect bacteria and phage…

Q: Briefly describe the differences between the lytic cycle of virulent phages and the lysogenic cycle…

A: Bacteriophages (phages) are obligate intracellular viruses that specifically infect bacteria. The…

Q: In E. coli, the passage of traits from parent to daughter cell occurs via A) O transformation B) O…

A: The cell division process of prokaryotes (such as E. coli bacteria) is called binary fission. For…

Q: What part of the A. tumefaciens DNA gets transferred to the genome of a plant cell during infection?

A: The genome represents the genetic material in an organism having a set of chromosomes which is…

Q: E. coli cells are simultaneously infected with two strains of phage λ. One strain has a mutant host…

A: A gene is a stretch of nucleotides present in the DNA molecule. It encodes information for the…

Q: Why can it be said that the retrovirus genome isunique in all of biology?

A: Enzymes are the biocatalyst that catalyzes the biochemical reactions or processes by lowering the…

Q: What programs or projects were implemented by the government in the Philippines for the prevention…

A: Corona virus, also called as Covid-19 is an infectious disease. It is caused by the SARS-CoV-2…

Q: Is the genus alcaligenes gelatin negative or postive?

A: Prokaryotes are single-celled microscopic organisms belongs to the domain bacteria. A prokaryotic…

Q: What is a prophage or temperate phage? What is lysogeny?

A: A bacteriophage is a virus that replicates and also infects the host cell, bacteria and archaea.…

Q: Please explain how alternative gene expression is mediated by a recombination process in Salmonella?…

A: Gene expression is the method by that info from a gene is used within the synthesis of a functional…

Q: Which protein product of HTLV-1 functions as a transcriptional activator and is also considered to…

A: HTLV-1 is an enveloped virus that contains two strands of RNA within a protein capsid. It can infect…

Q: What is the etiology of COVID 19? and its variants? and How is it being spread and how long is its…

A: Introduction  Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus…