Description : Craig Venter‘s sampling of ocean microorganisms is an example of a. Microarrays. b. Horizontal Gene Transfer. c. Microbial Forensics. d. Metagenomics.
Last Answer : d. Metagenomics.
Description : The physical nature of genomes is studied under A-structural genomics B- comparative genomics C- proteo genomics D-functional genomics
Last Answer : structural genomics
Description : The PCR/sequencing approach to rRNA is most likely to give information about A.the species to which the bacteria are most closely related B.morphology of the bacterium C.the type of energy metabolism the bacterium has D.whether the bacterium is motile
Last Answer : A.the species to which the bacteria are most closely related
Description : PCR and restriction fragment length polymorphism are the methods for (a) study of enzymes (b) genetic transformation (c) DNA sequencing (d) genetic fingerprinting.
Last Answer : (d) genetic fingerprinting.
Description : Which of the following statement is false (a). Enzymes are differentiated by electrophoresis method (b). While DNA sequencing both forward and reverse primers are used (c). Amplification is done through PCR (d). ABO blood grouping is mainly used for differentiating individuals
Last Answer : Ans: (b). While DNA sequencing both forward and reverse primers are used
Description : Viral genomes consist of a. DNA only. b. RNA only. c. DNA or RNA. d. DNA and RNA
Last Answer : c. DNA or RNA.
Description : The following statement(s) is/are true concerning newer detection methods of systemic infection. a. Enzyme-linked immunosorbent assay (ELISA) is a rapid immunologic assay used for ... detected using advanced molecular techniques include cytomegalovirus (CMV) and human immunodeficiency virus (HIV)
Last Answer : Answer: a, b, c, d Although the classic detection of infection based on clinical signs of infection and bacterial culture remain the most common clinical tools, increasing ... including CMV and HIV. Furthermore, preliminary investigations into possible detection of fungal pathogens are underway
Description : are single-stranded DNA molecules that can recognize and bind to a distinctive nucLeotide sequence of a pathogen. a. Prophages b. Plasmids c. Cloning vectors d. DNA probes
Last Answer : d. DNA probes
Description : Diagnostic DNA probes have been developed for A- Mycobacterium tuberculosis B- Hepatitis B virus C- Human immunodeficiency virus D- all of the above
Last Answer : - all of the above
Description : In DNA sequencing, the primer A.specifies where the sequence ends B.specifies where the sequence begins C.both (a) and (b) D.generates variety of different sized fragments
Last Answer : B.specifies where the sequence begins
Description : Which of the following defines an open reading frame (ORF)? A.A sequence of genome in bacteriophage B.The sequence of a complete genome C.A plasmid vector used in genome sequencing D.A possible gene predicted by DNA sequencing
Last Answer : D.A possible gene predicted by DNA sequencing
Description : Which of the following defines an open reading frame (ORF)? A- .A sequence of genome in bacteriophage B- The sequence of a complete genome C- A plasmid vector used in genome sequencing D- .A possible gene predicted by DNA sequencing
Last Answer : .A possible gene predicted by DNA sequencing
Description : A DNA probe and PCR are being used to identify _____. a. HIV infection b. HPV in PAP smears c. coli in water quality tests d. A-C are correct
Last Answer : d. A-C are correct
Description : Which one of the following macromolecules would NOT normally be used for microbial energy metabolism. a. DNA b. Proteins c. Carbohydrates d. Fats
Last Answer : b. Proteins
Description : The flow of genetic material in microbial cells usually takes place from A- RNA through DNA to proteins B- proteins through RNA to DNA C- .DNA through RNA to proteins D- none of these
Last Answer : .DNA through RNA to proteins
Description : What is the term for manipulating the genes of organisms to introduce new characteristics? a. Genomics b. Genetic engineering c. Recombinant RNA d. Genetic resistance
Last Answer : b. Genetic engineering
Description : What microbiological field was established by Winogradsky and Beijerinck? a. Virology b. Microbial ecology c. Bacteriology d. Mycology
Last Answer : b. Microbial ecology
Description : Which one of the following statements about interferon is FALSE? a. Interferon is produced in response to a viral infection. b. Interferon is a naturally produced protein. c. Interferon puts uninfected cells in an antiviral state. d. Interferon is a protein that binds to RNA virus genomes.
Last Answer : d. Interferon is a protein that binds to RNA virus genomes.
Description : A metagenome refers to a. A Large Genome In An Organism. b. The Collective Genomes Of Many Organisms. c. The Genome Of A Metazoan. d. Two Identical Genomes In Different Species.
Last Answer : b. The Collective Genomes Of Many Organisms.
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 : Which of the following type of recombination does not require homologous sequences and isimportant for the integration of viral genomes into bacterial chromosomes? A- Mutagenic recombimation B- Site-specific recombination C- Replicative recombination D- General recombination
Last Answer : Site-specific recombination
Description : Proteomics is A-the study of algal genomes B-a branch of quantum physics dealing with proteins C-the study of formation of lipo-protein in animals
Last Answer : the study of the entire collection of proteins expressed by an organism
Description : Which of the following theory is supported by the genomic sequence of the obligate intracellularparasite Rickettsia prowazekii ? A- Parasitic bacteria have very large genomes B- Parasites have a ... viruses C- Mitochondria have evolved from endosymbiotic bacteria D- All bacteria evolved from viruses
Last Answer : Mitochondria have evolved from endosymbiotic bacteria
Description : Which type of genomics studies the transcripts and proteins expressed by a genome? A- Comparative genomics B- Structural genomics C- Proteo genomics D- Functional genomics
Last Answer : Functional genomics
Description : Which of the following is concerned with the management and analysis of biological datausingcomputers? A- Bio-physics B- Bioinformatics C- Genomics D- Biomechanics
Last Answer : Bioinformatics
Description : Which of the following is used for determining the location of specific genes within the genome? A-Genomics B- Annotation C-Cloning D-Proteomics
Last Answer : Annotation
Description : An important method used in the rapid identification of a pathogen is a. RNA gene sequencing b. polymerase chain reaction c. molecular taxonomy d. biochemical tests
Last Answer : d. biochemical tests
Description : Why is microbial control necessary and what are some of the factors that go into the choice of a particular antimicrobial agent?
Last Answer : The control of microorganisms is an important way of preventing pathogens from reaching the body.Sterilizing laboratory equipment, hospital supplies, and industrial apparatus helps contain contamination.The choice of a ... , the acidity or alkalinity of the area, and the presence of organic matter.
Description : One indirect way to determine microbial growth is using a _____. a. UV light b. Spectrophotometer c. Light meter d. Radioactive counter
Last Answer : b. Spectrophotometer
Description : ______ form the bulk of microbial products of industrial interest. a. primary metabolites b. secondary metabolites c. tertiary metabolites d. quaternary metabolites
Last Answer : b. secondary metabolites
Description : Some scientists‘ estimate that in nature, _____ of all microbial activities occur in biofilms. a. 0.25 b. 0.33 c. 0.45 d. 0.6 e. 0.99
Last Answer : e. 0.99
Description : ________ bind to_________ on microbial invaders. a. Toll-like receptors; PAM Ps b. Mast cells; histamine c. Toll-like receptors; complement d. Macrophages; defensins
Last Answer : a. Toll-like receptors; PAM Ps
Description : ________ occurs if a microbial member of the normal microbiota should gain access to sterile tissue. a. Pathogenicity Islands b. Exogenous Infection c. Endogenous Infection d. Polymicrobial Disease
Last Answer : c. Endogenous Infection
Description : What is the thermal death time? a. The Time Necessary To Kill Bacteria At A Specific Temperature b. The Temperature Necessary To Kill Microbes In A Specific Time c. The Average Amount Of Time To Kill Microbial Cells d. It Is The Same As The Thermal Death Point
Last Answer : a. The Time Necessary To Kill Bacteria At A Specific Temperature
Description : Preservation methods such as salting result in the microbial cells. a. Loss Of Salt From b. Gain Of Water Into c. Loss Of Water From d. Lysis Of
Last Answer : c. Loss Of Water From
Description : The thermal death time is a. The Time To Kill A Microbial Population At A Given Temperature. b. The Time To Kill A Microbial Population In Boiling Water. c. The Temperature To Kill All Pathogens. d. The Minimal Temperature Need To Kill A Microbial Population.
Last Answer : a. The Time To Kill A Microbial Population At A Given Temperature.
Description : All the following terms apply to microbial killing except: a. Sterilization. b. Microbicidal. c. Bactericidal. d. Fungistatic.
Last Answer : d. Fungistatic
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 : The microbial ecosystem of soil includes A.biotic components of soil B.abiotic components of soil C.biotic and abiotic components of soil D.none of the above
Last Answer : C.biotic and abiotic components of soil
Description : Microbial rennet, which is used in cheese manufacture is produced by A- .Mucorspp B- Aspergillusspp C- Bacillus spp D- Saccharomyces spp
Last Answer : Aspergillusspp
Description : Which group of microbial agents is eukaryotic? a. Bacteria b. Viruses c. Archaea d. Algae
Last Answer : d. Algae
Description : What group of microbial agent was identified from the work of Ivanowsky a Beijerinck? a. Viruses b. Fungi c. Protozoa d. Bacteria
Last Answer : a. Viruses
Description : When comparing bacterial and archaeal cell membranes, only bacterial cell membranes a. Have three layers of phospholipids. b. Have a phospholipid bilayer. c. Are fluid. d. Have ether linkages.
Last Answer : b. Have a phospholipid bilayer.
Description : What are DNA probes? -Biology
Last Answer : answer:
Description : The cutting of DNA at specific locations became possible with the discovery of (a) selectable markers (b) ligases (c) restriction enzymes (d) probes.
Last Answer : (c) restriction enzymes
Description : Commonly used vectors for human genome sequencing are (a) T - DNA (b) BAC and YAC (c) expression vectors (d) T/A cloning vectors.
Last Answer : (b) BAC and YAC
Description : What conflict might have arisen as a result of differnet perspectives on treaties in Canada?
Last Answer : What is the answer ?