Description : Penicillin resistance in staphylococci is acquired due to A.conjugation B.mutation C.transformation D.transduction
Last Answer : D.transduction
Description : Penicillin resistance in staphylococci is acquired due to A- conjugation B- mutation C- transformation D- transduction
Last Answer : transduction
Description : Of the following which is the most important mechanism of concurrent acquisition of multidrug resistance among bacteria ? (a) Mutation (b) Conjugation (c) Transduction (d) Transformation
Last Answer : Ans: B
Description : The most important mechanism of concurrent acquisition of multidrug resistance among bacteria is: A. Mutation B. Conjugation C. Transduction D. Transformation
Last Answer : B. Conjugation
Description : Which of the following is NOT a type of horizontal gene transfer between bacterial cells? a. transformation b. conjugation c. transduction d. translation
Last Answer : d. translation
Description : Which one of the following is NOT an example of genetic recombination? a. Conjugation b. Binary fission c. Transduction d. Transformation
Last Answer : c. Transduction
Description : The term used for acquisition of naked DNA from its environment and its incorporation in their genome by a bacterium is A.transformation B.lysogenic conversion C.conjugation D.transduction
Last Answer : A.transformation
Description : The term used for acquisition of naked DNA from its environment and its incorporation in theirgenome by a bacterium is A- transformation B- lysogenic conversion C- conjugation D- .transduction
Last Answer : transformation
Description : The term used for acquisition of naked DNA from its environment and its incorporation in their A- transformation B- lysogenic conversion C- conjugation D- transduction
Description : F factor plasmids play a major role in A.conjugation B.replication C.transduction D.trasnscription
Last Answer : A.conjugation
Last Answer : conjugation
Description : Which of the following is NOT a mode of genetic exchange within a bacterial population? a) conjugation b) transduction c) transformation d) translation
Last Answer : ANSWER: D -- TRANSLATION
Description : Recombination of virus genomes occurs A- by transduction B- by transcription C- simultaneous infection of a host cell by two viruses with homologous chromosomes D- by transformation
Last Answer : simultaneous infection of a host cell by two viruses with homologous chromosomes
Description : In the extracellular medium, DNA-degrading enzymes would likely be to prevent transfer of DNA by A- conjugal transfer by a self-transmissible plasmid B- generalized phage transduction C- natural transformation D- none of the above
Last Answer : natural transformation
Description : Which of the following transport bacterial DNA to other bacteria via bacteriophages? A- Conjugation B- Transduction C- Transformation D- Translation
Last Answer : Transduction
Description : A bacterial cell that is transformed _____. a. Cannot Form A Conjugation Pilus. b. Has Undergone A Frameshift Mutation. c. Has Acquired Dna From The Environment. d. Will Probably Die Within 24 Hours.
Last Answer : c. Has Acquired Dna From The Environment.
Description : Widespread and prolonged used of an antibiotic leads to emergence of drug resistant strains because antibiotics (a) Induce mutation in the bacteria (b) Promote conjugation among bacteria (c) Allow resistant strains to propagate preferentially (d) All of the above
Last Answer : Ans: C
Description : Widespread and prolonged use of an antibiotic leads to emergence of drug resistant strains because antibiotics: A. Induce mutation in the bacteria B. Promote conjugation among bacteria C. Allow resistant strains to propagate preferentially D. All of the above
Last Answer : C. Allow resistant strains to propagate preferentially
Description : Transfer of genetic information from one bacterium to another in the transduction process is through (a) bacteriophages released from the donor bacterial strain (b) another bacterium ... physical contact between donor and recipient strains (d) conjugation between opposite strain bacterium.
Last Answer : (a) bacteriophages released from the donor bacterial strain
Description : Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria ... its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.
Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus.
Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus
Description : The drug isoniazid is used widely in contemporary medicine to a. Treat tuberculosis. b. Prevent fungal overgrowth in the intestine. c. Clear away wound infections. d. Eliminate infections due to gram-negative bacteria.
Last Answer : a. Treat tuberculosis.
Description : Specialized transduction is carried out by a. Virulent Phages That Have A Lytic Cycle Of Infection. b. Temperate Phages Carrying A Entire Bacterial Chromosome. c. Temperate Phages That Carry A Segment Of Host Dna. d. Virulent Phages That Swap Dna Segments.
Last Answer : c. Temperate Phages That Carry A Segment Of Host Dna.
Description : A is NOT associated with specialized transduction. a. Virulent Phage b. Lysogenic Cycle c. Prophage d. Recipient Cell
Last Answer : a. Virulent Phage
Description : What is transduction/transformation? -Biology
Last Answer : answer:
Description : Hershey and Chase experiment proving DNA as the genetic material was based on the principle a) Transduction b) transformation c) transcription d) translation
Last Answer : a) Transduction
Description : Select the correct Match : (1) Ribozyme - Nucleic acid (2) F2 x Recessive parent - Dihybrid cross (3) TH. Morgan - Transduction (4) G. Mendel - Transformation
Last Answer : (1) Ribozyme - Nucleic acid
Description : Which of the following cause new emerging infectious diseases? a. mutation b. recombination c. cross host ranges d. A-C are correct
Last Answer : d. A-C are correct
Description : Conjugation pili are found only on some ______ bacteria, though it may occur between cells of various bacteria. a. Gram-positive b. Gram-negative c. Acid-fast d. Capsule containing
Last Answer : b. Gram-negative
Description : Competence refers to a bacterial cell's ability to a. Take Up DNA Fragments From The Environment. b. Be Infected By A Transducing Phage. c. Produce A Protein Product From An Engineered Gene. d. Undergo Conjugation With An F+ Cell.
Last Answer : a. Take Up DNA Fragments From The Environment.
Description : The process of conjugation in bacteria requires that _____. a. Two Types Of Viruses Be Present. b. The Conjugating Bacteria Be Deprived Of Nutrients. c. Two Bacteria Exchange Dna. d. Two Live Bacteria Come Together.
Last Answer : d. Two Live Bacteria Come Together.
Description : An Hfr cell a. Has A Free F Factor In The Cytoplasm. b. Has A Chromosomally Integrated F Factor. c. Contains A Prophage For Conjugation. d. Cannot Conjugate With A F- Recombinant.
Last Answer : b. Has A Chromosomally Integrated F Factor.
Description : An F-cell is unable to initiate conjugation because it lacks a. Double-Stranded DNA. b. A Prophase. c. An F Factor. d. DNA polymerase
Last Answer : c. An F Factor.
Description : Which of the following statement(s) is/are true in regards to F+ x F- mating events? A- DNA is transferred from F- to F+ cells B- DNA is transferred from F+ to F- cells C- No ... F- cells are unable to perform conjugation D- No DNA is transferred because F+ cells are unable to perform conjugation
Last Answer : DNA is transferred from F+ to F- cells
Description : How can bacteria exchange pieces of DNA? a. mitosis b. budding c. meiosis d. conjugation
Last Answer : d. conjugation
Description : Which bacterium is responsible for tuberculosis, and what are the characteristics of the organism?
Last Answer : Tuberculosis is caused by a slender rod known as Mycobacterium tuberculosis. This slow- growing rod is neither Gram- positive nor Gram- negative; rather, it is acid- fast. When stained with ... fast characteristic is due to the presence of a very thick cell wall containing mycolic acid.
Description : Penicillins are useful in treating a. Gram-positive infections. b. Leprosy. c. Gram-negative infections. d. Tuberculosis.
Last Answer : a. Gram-positive infections.
Description : Isoniazid and ethambutol are used to treat a. Cholera. b. Influenza. c. MRSA. d. Tuberculosis.
Last Answer : d. Tuberculosis.
Description : Humans can acquire which one of the following diseases from the droppings of infected birds? a. Q fever b. Legionellosis c. Tuberculosis d. Psittacosis
Last Answer : d. Psittacosis
Description : A catarrhal and paroxysma stage is typical of which one of the following bacterial diseases? a. Tuberculosis b. Pneumonia c. Pertussis d. Q Fever
Last Answer : c. Pertussis
Description : Methylene blue staining of metachromatic granules is diagnostic for which of the following bacteria? a. Mycobacterium Tuberculosis b. Coiynebacterium Diphtheriae c. Chlamydia Pneumoniae d. Bordetella Pertussis
Last Answer : b. Coiynebacterium Diphtheriae
Description : Which of the following disease is not caused by microbial protein toxin? A.Botulism B.Diphtheria C.Shigella dysentery D.Tuberculosis
Last Answer : D.Tuberculosis
Description : Humans become infected with Mycobacterium tuberculosis most frequently by A.inhalation B.ingestion C.contact D.inoculation
Last Answer : A.inhalation
Description : Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes? A.The pathogen contains mycolic acid in its cell wall B.The pathogen can live inside macrophages C.Antibodies to the pathogen are protective D.None of these
Last Answer : C.Antibodies to the pathogen are protective
Description : Which of the phage types of Mycobacterium tuberculosis occurs most frequently in India? A.Type A B.Type B C.Type C D.Type
Last Answer : D.Type
Description : Which of the following bacteria dies quickly after drying? A.Treponemapallidium B.Mycobacterium tuberculosis C.Staphylococcusaureus D.Pseudomonasaeruginosa
Last Answer : A.Treponemapallidium
Description : Which of the following infection(s) can be diagnosed by the use of polymerase chain reaction? A- HIV-1 and HIV-2 viruses B- Hepatitis B virus C- Mycobacterium tuberculosis D- All of these
Last Answer : All of these
Description : Passive immunization is done for A- tuberculosis B- diphtheria C- enteric fever D- all of these
Last Answer : diphtheria