A cosmid is a (A) Large bacterial plasmid (B) Viral plasmid (C) Hybrid of plasmid and phage (D) Yeast plasmid

A cosmid is a (A) Large bacterial plasmid (B) Viral plasmid (C) Hybrid of plasmid and phage (D) Yeast plasmid
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Which vector can clone only a small fragment of DNA? (a) Bacterial artificial chromosome (b) Yeast artificial chromosome (c) Plasmid (d) Cosmid

Description : Which vector can clone only a small fragment of DNA? (a) Bacterial artificial chromosome (b) Yeast artificial chromosome (c) Plasmid (d) Cosmid

Last Answer : (c) Plasmid

Which of the following may be used as a cloning vector? (A) Prokaryotic plasmid(B) Lambda phage (C) Cosmid (D) All of these

Description : Which of the following may be used as a cloning vector? (A) Prokaryotic plasmid(B) Lambda phage (C) Cosmid (D) All of these

Last Answer : Answer : D

DNA fragments upto 45 kilobases in size can be cloned in (A) Bacterial plasmids (B) Lambda phage (C) Cosmids (D) Yeast artificial chromosomes

Description : DNA fragments upto 45 kilobases in size can be cloned in (A) Bacterial plasmids (B) Lambda phage (C) Cosmids (D) Yeast artificial chromosomes

Last Answer : Answer : C

Which one of the following vectors is used to replace the defective gene in gene therapy? (a) Adenovirus (b) Cosmid (c) Ri plasmid (d) Ti plasmid

Description : Which one of the following vectors is used to replace the defective gene in gene therapy? (a) Adenovirus (b) Cosmid (c) Ri plasmid (d) Ti plasmid

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Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes? (a) Retrovirus (b) Ti plasmid (c) λ phage (d) pBR322

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Transduction in bacteria is mediated by (a) plasmid vectors (b) phage vectors (c) cosmids (d) F-factors.

Description : Transduction in bacteria is mediated by (a) plasmid vectors (b) phage vectors (c) cosmids (d) F-factors.

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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

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Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes ? (1) Retrovirus (2) Ti plasmid (3)  phage (4) pBR 322

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Last Answer : (1) Retrovirus

A plaque is a a. Change In Cell Structure Due To Viral Infection. b. Viral Cell Inclusion. c. Clear Zone Within A Lawn Of Bacteria. d. Cellular Aggregation Of Phage Heads.

Description : A plaque is a a. Change In Cell Structure Due To Viral Infection. b. Viral Cell Inclusion. c. Clear Zone Within A Lawn Of Bacteria. d. Cellular Aggregation Of Phage Heads.

Last Answer : c. Clear Zone Within A Lawn Of Bacteria.

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.

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.

During the process of lysogeny _____. a. Phage DNA Integrates Into The Bacterial Chromosome.b. A Bacterium Acquires DNA From The External Environment. c. Competent Cells Receive Plasmids. d. New Phage Particles Are Assembled In The Host Bacterium.

Description : During the process of lysogeny _____. a. Phage DNA Integrates Into The Bacterial Chromosome. b. A Bacterium Acquires DNA From The External Environment. c. Competent Cells Receive Plasmids. d. New Phage Particles Are Assembled In The Host Bacterium.

Last Answer : a. Phage DNA Integrates Into The Bacterial Chromosome.

Area of lysis on a bacterial lawn culture produced by a phage is known as A.pock B.plaque C.pox D.all of these

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The Ti plasmid, is often used for making transgenic plants. The plasmid is found in (a) Azotobacter (b) Rhizobium of the roots of leguminous plants (c) Agrobacterium (d) Yeast as a 2 mm plasmid.

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Last Answer : (c) Agrobacterium

The fruit when kept is open, tastes bitter after 2 hours because of (A) Loss of water from juice (B) Decreased concentration of fructose in juice (C) Fermentation by yeast (D) Contamination by bacterial enzymes

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Last Answer : Answer : D

Differences between a bacterial chromosome and a plasmid? -Biology

Description : Differences between a bacterial chromosome and a plasmid? -Biology

Last Answer : answer:

How is the recombinant plasmid different from the bacterial chromosome?

Description : How is the recombinant plasmid different from the bacterial chromosome?

Last Answer : Need answer

The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is (a) Plasmid mediated acquisition of aminoglycoside conjugating enzyme (b) Mutational acquisition of aminoglycoside hydrolyzing enzyme (c) Mutation reducing affinity of ribosomal protein for the antibiotic (d) Mutational loss of porin channels

Description : The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is (a) Plasmid mediated acquisition of aminoglycoside conjugating enzyme (b) Mutational acquisition of aminoglycoside ... affinity of ribosomal protein for the antibiotic (d) Mutational loss of porin channels

Last Answer : Ans: A

The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is (a) Decreased permeability into the bacterial cell (b) Acquisition of a plasmid encoded for chloramphenicol acetyl transferase (c) Lowered affinity of the bacterial ribosome for chloramphenicol (d) Switching over from ribosomal to mitochondrial protein synthesis

Description : The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is (a) Decreased permeability into the bacterial cell (b) Acquisition of a plasmid encoded ... bacterial ribosome for chloramphenicol (d) Switching over from ribosomal to mitochondrial protein synthesis

Last Answer : Ans: B

The process of replication in plasmid DNA, other than initiation, is controlled by (a) mitochondrial gene (b) plasmid gene (c) bacterial gene (d) none of these.

Description : The process of replication in plasmid DNA, other than initiation, is controlled by (a) mitochondrial gene (b) plasmid gene (c) bacterial gene (d) none of these.

Last Answer : c) bacterial gene

The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is: A. Plasmid mediated acquisition of aminoglycoside conjugating enzyme B. Mutational acquisition of aminoglycoside hydrolysing enzyme C. Mutation reducing affinity of ribosomal protein for the antibiotic D. Mutational loss of porin channels

Description : The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is: A. Plasmid mediated acquisition of aminoglycoside conjugating enzyme B. Mutational acquisition of aminoglycoside ... affinity of ribosomal protein for the antibiotic D. Mutational loss of porin channels

Last Answer : A. Plasmid mediated acquisition of aminoglycoside conjugating enzyme

The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is: A. Decreased permeability into the bacterial cell B. Acquisition of a plasmid encoded for chloramphenicol acetyl transferase C. Lowered affinity of the bacterial ribosome for chloramphenicol D. Switching over from ribosomal to mitochondrial protein synthesi

Description : The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is: A. Decreased permeability into the bacterial cell B. Acquisition of a plasmid encoded ... the bacterial ribosome for chloramphenicol D. Switching over from ribosomal to mitochondrial protein synthesi

Last Answer : B. Acquisition of a plasmid encoded for chloramphenicol acetyl transferas

What is cosmid?

Description : What is cosmid?

Last Answer : Genetically engineered vector containing phage and plasmid genetic elements which accepts inserts of larger length (average of 45 kb) than phage (15 kb) or plasmid (1-10 kb) derived vectors. The ... the vector DNA which is then amplified and maintained as a giant plasmid in the host cell. 

Human insulins are obtained by the following sources/methods except: A. Cadaver pancreas B. Proinsulin recombinant bacterial C. Precursor yeast recombinant D. Enzyme modification of **** insulin

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Last Answer : . Cadaver pancreas

What is the term describes an inflammation of the cornea that can be due to many causes including bacterial viral or fungal infections.?

Description : What is the term describes an inflammation of the cornea that can be due to many causes including bacterial viral or fungal infections.?

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Acute exacerbations of asthma can be triggered by all of the following except (a) Bacterial or viral pneumonia (b) Hypersensitivity reaction to penicillin (c) Discontinuation of asthma medication (d) Hot, dry weather (e) Stressful emotional events

Description : Acute exacerbations of asthma can be triggered by all of the following except (a) Bacterial or viral pneumonia (b) Hypersensitivity reaction to penicillin (c) Discontinuation of asthma medication (d) Hot, dry weather (e) Stressful emotional events

Last Answer : Ans: D

Acute exacerbations of asthma can be triggered by all of the following except (a) Bacterial of viral pneumonia (b) Hypertsensitivity reaction to penicillin (c) Discontinuation of asthma medication (d) Hot, dry weather (e) Stressful emotional events

Description : Acute exacerbations of asthma can be triggered by all of the following except (a) Bacterial of viral pneumonia (b) Hypertsensitivity reaction to penicillin (c) Discontinuation of asthma medication (d) Hot, dry weather (e) Stressful emotional events

Last Answer : Ans: D

Haemophilia is a kind of disease which is (1) viral (2) bacterial (3) hereditary (4) fungal

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Ringworm is a _____ disease. (1) Bacterial (2) Protozoan (3) Viral (4) Fm gal

Description : Ringworm is a _____ disease. (1) Bacterial (2) Protozoan (3) Viral (4) Fm gal

Last Answer : (4) Fm gal Explanation: Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. ... pets, the fungus responsible for the disease survives in skin and on the outer surface of hairs.

AIDS is a/an - (1) bacterial disease (2) viral disease (3) fungal disease (4) algal disease

Description : AIDS is a/an - (1) bacterial disease (2) viral disease (3) fungal disease (4) algal disease

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Rabies is a – (1) Helminthic disease (2) Viral disease (3) Bacterial disease (4) Protozoan disease

Description : Rabies is a – (1) Helminthic disease (2) Viral disease (3) Bacterial disease (4) Protozoan disease

Last Answer : (2) Viral disease Explanation: Rabies is a viral disease that causes inflammation of the brain in humans and other mammals.

Small pox is a deadly and highly contagious: (1) Bacterial Disease (2) Viral disease (3) Fungal disease (4) Vitamin deficiency disease

Description : Small pox is a deadly and highly contagious: (1) Bacterial Disease (2) Viral disease (3) Fungal disease (4) Vitamin deficiency disease

Last Answer : (2) Viral disease Explanation: Smallpox is a contagious disease caused by the Variola virus, so it is a viral disease.

Which type of pathogen causes the water-borne disease Schistosomiasis? (1) Parasitic (2) Protozoan (3) Bacterial (4) Viral

Description : Which type of pathogen causes the water-borne disease Schistosomiasis? (1) Parasitic (2) Protozoan (3) Bacterial (4) Viral

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Last Answer : protozoal disease

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Last Answer : Bacterial pneumonia

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Last Answer : Cellular copies of genes that were first found in oncogenic retroviruses

Polymorphonuclear neutrophil granulocytes A A. are important cells in bacterial infections B. play a role in inflammation by releasing histamine C. are important cells in neoplastic conditions D. play an important role in viral infections

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Last Answer : Fungal disease

Antibiotics will not work against _____ diseases because they lack the structures and metabolic machinery with which antibiotics interfere. a. viral b. bacterial c. fungal d. protozoan

Description : Antibiotics will not work against _____ diseases because they lack the structures and metabolic machinery with which antibiotics interfere. a. viral b. bacterial c. fungal d. protozoan

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Description : The imidazole drugs are of value for treating a. Viral diseases. b. Protozoal diseases and bacterial diseases. c. Bacterial diseases. d. Fungal diseases.

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Description : ALL the following are immunogenic except: a. Bacterial Flagella. b. Haptens. c. Bacterial Pili. d. Viral Spikes.

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Swimmer‘s ear is a common name for a infection of the_________ ear. a. Bacterial; Outer b. Viral; Outer c. Bacterial; Middle d. Viral; Inner

Description : Swimmer‘s ear is a common name for a infection of the_________ ear. a. Bacterial; Outer b. Viral; Outer c. Bacterial; Middle d. Viral; Inner

Last Answer : a. Bacterial; Outer

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

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

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The paradigm that explains the cause of illness as an imbalance in the forces of nature is the a) holistic perspective. The naturalist or holistic perspective believes that health exists when all aspects of a persona are in perfect balance or harmony. b) magico-religious view. The magico-religious view holds that illness is caused by forces of evil. c) biomedical view. The biomedical view holds life events as cause and effect and incorporates the bacterial or viral explanation of communicable disease. d) scientific view. The scientific view holds life events as cause and effect and incorporates the bacterial or viral explanation of communicable disease.

Description : The paradigm that explains the cause of illness as an imbalance in the forces of nature is the a) holistic perspective. The naturalist or holistic perspective believes that health exists when ... events as cause and effect and incorporates the bacterial or viral explanation of communicable disease.

Last Answer : a) holistic perspective. The naturalist or holistic perspective believes that health exists when all aspects of a persona are in perfect balance or harmony.

Dental caries are due to (1) Viral infection (2) Contaminated water (3) Bacterial infection (4) Hereditary causes

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