Q. Which animal is most commonly used for transgenic research?
-
A.
Dogs
-
B.
Cats
-
C.
Mice
-
D.
Rabbits
Solution
Mice are the most commonly used animals in transgenic research due to their genetic similarity to humans and short reproductive cycles.
Correct Answer:
C
— Mice
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Q. Which antibiotic class is primarily used to treat infections caused by Gram-positive bacteria and works by inhibiting cell wall synthesis?
-
A.
Cephalosporins
-
B.
Fluoroquinolones
-
C.
Macrolides
-
D.
Tetracyclines
Solution
Cephalosporins are used to treat infections caused by Gram-positive bacteria and inhibit cell wall synthesis.
Correct Answer:
A
— Cephalosporins
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Q. Which antibiotic is commonly used to treat severe Vibrio infections?
-
A.
Amoxicillin
-
B.
Ciprofloxacin
-
C.
Vancomycin
-
D.
Metronidazole
Solution
Ciprofloxacin is often used to treat severe infections caused by Vibrio species.
Correct Answer:
B
— Ciprofloxacin
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Q. Which antibiotic is commonly used to treat tuberculosis?
-
A.
Ciprofloxacin
-
B.
Isoniazid
-
C.
Vancomycin
-
D.
Doxycycline
Solution
Isoniazid is a first-line medication used to treat tuberculosis.
Correct Answer:
B
— Isoniazid
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Q. Which antibiotic is effective against anaerobic bacteria?
-
A.
Cefazolin
-
B.
Metronidazole
-
C.
Amoxicillin
-
D.
Azithromycin
Solution
Metronidazole is effective against anaerobic bacteria and is often used for such infections.
Correct Answer:
B
— Metronidazole
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Q. Which antibiotic is effective against methicillin-resistant Staphylococcus aureus (MRSA)?
-
A.
Cloxacillin
-
B.
Vancomycin
-
C.
Ampicillin
-
D.
Gentamicin
Solution
Vancomycin is effective against MRSA due to its mechanism of inhibiting cell wall synthesis.
Correct Answer:
B
— Vancomycin
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Q. Which antibiotic is often ineffective against Pseudomonas aeruginosa?
-
A.
Ciprofloxacin
-
B.
Piperacillin
-
C.
Vancomycin
-
D.
Ceftazidime
Solution
Vancomycin is often ineffective against Pseudomonas aeruginosa, as it is primarily effective against Gram-positive bacteria.
Correct Answer:
C
— Vancomycin
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Q. Which antibiotic is often used to treat MRSA infections?
-
A.
Ceftriaxone
-
B.
Clindamycin
-
C.
Amoxicillin
-
D.
Gentamicin
Solution
Clindamycin is commonly used to treat infections caused by MRSA.
Correct Answer:
B
— Clindamycin
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Q. Which antibody is associated with blood group incompatibility in transfusions?
-
A.
IgG
-
B.
IgM
-
C.
IgA
-
D.
IgE
Solution
IgM antibodies can cause agglutination of red blood cells in cases of blood group incompatibility during transfusions.
Correct Answer:
B
— IgM
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Q. Which antibody is primarily found in mucosal areas such as the gut and respiratory tract?
-
A.
IgG
-
B.
IgA
-
C.
IgM
-
D.
IgD
Solution
IgA is the main antibody found in mucosal areas, providing a first line of defense against pathogens entering through mucosal surfaces.
Correct Answer:
B
— IgA
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Q. Which antibody is the first to be produced in response to an infection?
-
A.
IgG
-
B.
IgA
-
C.
IgM
-
D.
IgE
Solution
IgM is the first antibody produced in response to an infection, providing an initial defense.
Correct Answer:
C
— IgM
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Q. Which antioxidant found in red wine is linked to potential health benefits?
-
A.
Resveratrol
-
B.
Quercetin
-
C.
Catechin
-
D.
Flavonoids
Solution
Resveratrol is an antioxidant found in red wine that is linked to potential health benefits.
Correct Answer:
A
— Resveratrol
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Q. Which application is NOT commonly associated with PCR?
-
A.
Genetic testing
-
B.
Forensic analysis
-
C.
Protein synthesis
-
D.
Pathogen detection
Solution
PCR is not used for protein synthesis; it is primarily used for amplifying DNA for various applications.
Correct Answer:
C
— Protein synthesis
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Q. Which aquatic microbe is primarily responsible for the decomposition of organic matter?
-
A.
Cyanobacteria
-
B.
Fungi
-
C.
Archaea
-
D.
Protozoa
Solution
Fungi play a significant role in the decomposition of organic matter in aquatic environments, breaking down complex materials.
Correct Answer:
B
— Fungi
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Q. Which area of the brain is primarily involved in language comprehension?
-
A.
Broca's area
-
B.
Wernicke's area
-
C.
Motor cortex
-
D.
Visual cortex
Solution
Wernicke's area is primarily involved in language comprehension.
Correct Answer:
B
— Wernicke's area
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Q. Which artery supplies blood to the face?
-
A.
Subclavian artery
-
B.
Carotid artery
-
C.
Facial artery
-
D.
Brachial artery
Solution
The facial artery is the primary vessel supplying blood to the face.
Correct Answer:
C
— Facial artery
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Q. Which artery supplies blood to the heart muscle itself?
-
A.
Coronary artery
-
B.
Pulmonary artery
-
C.
Aorta
-
D.
Subclavian artery
Solution
The coronary arteries supply blood to the heart muscle itself, ensuring it receives oxygen and nutrients.
Correct Answer:
A
— Coronary artery
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Q. Which artery supplies blood to the liver?
-
A.
Celiac trunk
-
B.
Renal artery
-
C.
Hepatic artery
-
D.
Mesenteric artery
Solution
The hepatic artery supplies oxygenated blood to the liver.
Correct Answer:
C
— Hepatic artery
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Q. Which autoimmune disease is characterized by dry eyes and dry mouth due to the immune system attacking exocrine glands?
-
A.
Sjögren's Syndrome
-
B.
Rheumatoid Arthritis
-
C.
Systemic Lupus Erythematosus
-
D.
Ankylosing Spondylitis
Solution
Sjögren's Syndrome is an autoimmune disease where the immune system attacks the glands that produce moisture, leading to dry eyes and mouth.
Correct Answer:
A
— Sjögren's Syndrome
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Q. Which autoimmune disease is characterized by the presence of anti-citrullinated protein antibodies (ACPAs)?
-
A.
Rheumatoid Arthritis
-
B.
Systemic Lupus Erythematosus
-
C.
Ankylosing Spondylitis
-
D.
Psoriatic Arthritis
Solution
Rheumatoid Arthritis is often associated with the presence of anti-citrullinated protein antibodies (ACPAs), which are used as a diagnostic marker.
Correct Answer:
A
— Rheumatoid Arthritis
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Q. Which autoimmune disorder is associated with the overproduction of thyroid hormones?
-
A.
Hashimoto's Thyroiditis
-
B.
Graves' Disease
-
C.
Sjögren's Syndrome
-
D.
Celiac Disease
Solution
Graves' Disease is an autoimmune disorder that leads to the overproduction of thyroid hormones due to the immune system's attack on the thyroid gland.
Correct Answer:
B
— Graves' Disease
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Q. Which Bacillus species is commonly used as a biological pesticide?
-
A.
Bacillus anthracis
-
B.
Bacillus thuringiensis
-
C.
Bacillus cereus
-
D.
Bacillus subtilis
Solution
Bacillus thuringiensis is widely used as a biological pesticide due to its insecticidal properties.
Correct Answer:
B
— Bacillus thuringiensis
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Q. Which Bacillus species is known for causing food poisoning associated with rice?
-
A.
Bacillus anthracis
-
B.
Bacillus cereus
-
C.
Bacillus subtilis
-
D.
Bacillus thuringiensis
Solution
Bacillus cereus is known for causing food poisoning, particularly from improperly stored rice.
Correct Answer:
B
— Bacillus cereus
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Q. Which bacteria are known for their pleomorphic nature?
-
A.
Cocci
-
B.
Bacilli
-
C.
Mycoplasma
-
D.
Vibrio
Solution
Mycoplasma bacteria are known for their pleomorphic nature.
Correct Answer:
C
— Mycoplasma
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Q. Which bacteria is commonly associated with food poisoning from undercooked poultry?
-
A.
Listeria monocytogenes
-
B.
Clostridium botulinum
-
C.
Salmonella enterica
-
D.
Campylobacter jejuni
Solution
Salmonella enterica is commonly associated with food poisoning from undercooked poultry.
Correct Answer:
C
— Salmonella enterica
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Q. Which bacteria is commonly associated with undercooked eggs?
-
A.
Listeria
-
B.
Salmonella
-
C.
Staphylococcus
-
D.
Clostridium
Solution
Salmonella is commonly associated with undercooked eggs, posing a risk of foodborne illness.
Correct Answer:
B
— Salmonella
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Q. Which bacteria is most commonly associated with improperly canned foods?
-
A.
E. coli
-
B.
Salmonella
-
C.
Clostridium botulinum
-
D.
Listeria monocytogenes
Solution
Clostridium botulinum is a bacterium that can produce toxins in improperly canned foods, leading to botulism.
Correct Answer:
C
— Clostridium botulinum
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Q. Which bacteria morphology is described as coccobacilli?
-
A.
Short rods
-
B.
Long rods
-
C.
Spherical
-
D.
Spiral
Solution
Coccobacilli are short rod-shaped bacteria.
Correct Answer:
A
— Short rods
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Q. Which bacterial pathogen is known for causing a severe, rapidly progressive necrotizing fasciitis?
-
A.
Streptococcus pyogenes
-
B.
Escherichia coli
-
C.
Clostridium perfringens
-
D.
Staphylococcus aureus
Solution
Streptococcus pyogenes is known for causing necrotizing fasciitis, a severe and rapidly progressive soft tissue infection.
Correct Answer:
A
— Streptococcus pyogenes
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Q. Which bacterium is commonly associated with food poisoning from undercooked poultry?
-
A.
Salmonella enterica
-
B.
Listeria monocytogenes
-
C.
Escherichia coli
-
D.
Clostridium perfringens
Solution
Salmonella enterica is a common cause of foodborne illness, often linked to undercooked poultry and eggs.
Correct Answer:
A
— Salmonella enterica
Learn More →
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