Q. Which type of support is commonly used for enzyme immobilization?
A.
Cellulose
B.
Silica gel
C.
Polyacrylamide
D.
All of the above
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Solution
All of the mentioned supports, including cellulose, silica gel, and polyacrylamide, are commonly used for enzyme immobilization.
Correct Answer:
D
— All of the above
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Q. Which type of tissue is characterized by a high density of collagen fibers and is found in tendons?
A.
Adipose tissue
B.
Dense regular connective tissue
C.
Loose connective tissue
D.
Elastic connective tissue
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Solution
Dense regular connective tissue is characterized by tightly packed collagen fibers, providing strength and resistance to tensile forces, making it ideal for tendons.
Correct Answer:
B
— Dense regular connective tissue
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Q. Which type of transport requires energy to move substances across the cell membrane?
A.
Passive transport
B.
Facilitated diffusion
C.
Active transport
D.
Osmosis
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Solution
Active transport requires energy, usually in the form of ATP, to move substances against their concentration gradient.
Correct Answer:
C
— Active transport
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Q. Which type of vector is commonly used for stable transfection in animal cells?
A.
Plasmid vectors
B.
Bacteriophage vectors
C.
Viral vectors
D.
Cosmids
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Solution
Viral vectors are often used for stable transfection in animal cells due to their ability to integrate into the host genome.
Correct Answer:
C
— Viral vectors
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Q. Which type of vector is typically used for transient expression in animal cells?
A.
Viral vectors
B.
Plasmid vectors
C.
Bacterial artificial chromosomes
D.
Yeast artificial chromosomes
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Solution
Plasmid vectors are commonly used for transient expression in animal cells, allowing for short-term gene expression.
Correct Answer:
B
— Plasmid vectors
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Q. Which type of white blood cell is primarily responsible for producing antibodies?
A.
T cells
B.
B cells
C.
Natural killer cells
D.
Neutrophils
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Solution
B cells are responsible for producing antibodies that target specific antigens.
Correct Answer:
B
— B cells
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Q. Which type of wine is generally higher in sugar content?
A.
Dry wine
B.
Sweet wine
C.
Sparkling wine
D.
Fortified wine
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Solution
Sweet wine generally has a higher sugar content compared to dry wine.
Correct Answer:
B
— Sweet wine
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Q. Which type of wine is typically lower in calories?
A.
Red wine
B.
White wine
C.
Sparkling wine
D.
Dessert wine
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Solution
White wine is typically lower in calories compared to red and dessert wines.
Correct Answer:
B
— White wine
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Q. Which vaccine was developed to eradicate smallpox?
A.
MMR vaccine
B.
Polio vaccine
C.
Smallpox vaccine
D.
Influenza vaccine
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Solution
The smallpox vaccine was specifically developed to eradicate smallpox.
Correct Answer:
C
— Smallpox vaccine
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Q. Which valve prevents backflow of blood from the aorta into the left ventricle?
A.
Tricuspid valve
B.
Pulmonary valve
C.
Mitral valve
D.
Aortic valve
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Solution
The aortic valve prevents backflow of blood from the aorta into the left ventricle.
Correct Answer:
D
— Aortic valve
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Q. Which vegetable is a good source of folate?
A.
Potato
B.
Spinach
C.
Carrot
D.
Onion
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Solution
Spinach is rich in folate, which is important for DNA synthesis and repair.
Correct Answer:
B
— Spinach
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Q. Which vegetable is known for its cancer-fighting properties?
A.
Broccoli
B.
Carrot
C.
Potato
D.
Lettuce
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Solution
Broccoli contains compounds that have been shown to have anti-cancer effects.
Correct Answer:
A
— Broccoli
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Q. Which vegetable is known for its high vitamin K content?
A.
Broccoli
B.
Cauliflower
C.
Zucchini
D.
Bell pepper
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Solution
Broccoli is an excellent source of vitamin K, which is important for blood clotting and bone health.
Correct Answer:
A
— Broccoli
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Q. Which vein carries oxygenated blood from the lungs to the heart?
A.
Superior vena cava
B.
Inferior vena cava
C.
Pulmonary vein
D.
Coronary vein
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Solution
The pulmonary vein carries oxygenated blood from the lungs to the heart.
Correct Answer:
C
— Pulmonary vein
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Q. Which viral vector is most commonly used for gene therapy in animal cells?
A.
Adenovirus
B.
Bacteriophage
C.
Lentivirus
D.
Herpesvirus
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Solution
Lentivirus is commonly used in gene therapy due to its ability to integrate into the host genome and infect non-dividing cells.
Correct Answer:
C
— Lentivirus
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Q. Which virulence factor is primarily responsible for the adherence of Neisseria gonorrhoeae to epithelial cells?
A.
Pili
B.
Exotoxins
C.
Capsule
D.
Endotoxin
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Solution
Pili are the primary virulence factor that allows Neisseria gonorrhoeae to adhere to epithelial cells in the urogenital tract.
Correct Answer:
A
— Pili
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Q. Which virus is associated with the development of cervical cancer?
A.
HIV
B.
HPV
C.
Hepatitis C
D.
Influenza
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Solution
Human Papillomavirus (HPV) is associated with the development of cervical cancer.
Correct Answer:
B
— HPV
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Q. Which virus is associated with the development of shingles?
A.
Varicella-zoster virus
B.
Cytomegalovirus
C.
Epstein-Barr virus
D.
Human herpesvirus 6
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Solution
Shingles is caused by the reactivation of the varicella-zoster virus, which also causes chickenpox.
Correct Answer:
A
— Varicella-zoster virus
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Q. Which virus is known for causing the common cold?
A.
Influenza virus
B.
Rhinovirus
C.
HIV
D.
Herpes simplex virus
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Solution
Rhinovirus is the most common cause of the common cold, responsible for a significant number of upper respiratory infections.
Correct Answer:
B
— Rhinovirus
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Q. Which virus is known to cause gastroenteritis and belongs to the Caliciviridae family?
A.
Norovirus
B.
Rabies virus
C.
Hepatitis A virus
D.
Astrovirus
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Solution
Norovirus is a member of the Caliciviridae family and is a leading cause of viral gastroenteritis.
Correct Answer:
A
— Norovirus
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Q. Which virus is known to cause hand, foot, and mouth disease and belongs to the Picornaviridae family?
A.
Coxsackievirus
B.
Vaccinia virus
C.
Variola virus
D.
Herpes simplex virus
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Solution
Coxsackievirus is a member of the Picornaviridae family and is known to cause hand, foot, and mouth disease.
Correct Answer:
A
— Coxsackievirus
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Q. Which virus is known to cause the common cold?
A.
Influenza virus
B.
Rhinovirus
C.
HIV
D.
Hepatitis B virus
Show solution
Solution
Rhinovirus is the most common cause of the common cold.
Correct Answer:
B
— Rhinovirus
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Q. Which virus is known to cause the disease known as 'foot-and-mouth disease' in livestock?
A.
Avian influenza virus
B.
Foot-and-mouth disease virus
C.
Bovine viral diarrhea virus
D.
Porcine reproductive and respiratory syndrome virus
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Solution
Foot-and-mouth disease is caused by the foot-and-mouth disease virus, which affects cloven-hoofed animals.
Correct Answer:
B
— Foot-and-mouth disease virus
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Q. Which virus is primarily responsible for causing cervical cancer?
A.
Hepatitis C virus
B.
Human papillomavirus (HPV)
C.
Herpes simplex virus
D.
Cytomegalovirus
Show solution
Solution
Human papillomavirus (HPV) is the primary cause of cervical cancer, particularly certain high-risk strains.
Correct Answer:
B
— Human papillomavirus (HPV)
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Q. Which virus is responsible for the disease known as 'African swine fever'?
A.
Porcine parvovirus
B.
African swine fever virus
C.
Classical swine fever virus
D.
Porcine reproductive and respiratory syndrome virus
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Solution
African swine fever is caused by the African swine fever virus, which affects domestic and wild pigs.
Correct Answer:
B
— African swine fever virus
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Q. Which vitamin acts as a coenzyme in the metabolism of amino acids?
A.
Vitamin B6
B.
Vitamin B12
C.
Vitamin C
D.
Vitamin D
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Solution
Vitamin B6 (Pyridoxine) acts as a coenzyme in the metabolism of amino acids, facilitating transamination and deamination reactions.
Correct Answer:
A
— Vitamin B6
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Q. Which vitamin deficiency is associated with night blindness?
A.
Vitamin A
B.
Vitamin B2
C.
Vitamin C
D.
Vitamin E
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Solution
Vitamin A deficiency can lead to night blindness due to its role in the formation of rhodopsin, a pigment in the retina.
Correct Answer:
A
— Vitamin A
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Q. Which vitamin is a coenzyme for the conversion of pyruvate to acetyl-CoA?
A.
Vitamin B1
B.
Vitamin B2
C.
Vitamin B3
D.
Vitamin B5
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Solution
Vitamin B5 (Pantothenic acid) is a coenzyme in the conversion of pyruvate to acetyl-CoA, a key step in energy metabolism.
Correct Answer:
D
— Vitamin B5
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Q. Which vitamin is a precursor for the coenzyme involved in the TCA cycle?
A.
Vitamin C
B.
Vitamin B1
C.
Vitamin B2
D.
Vitamin B3
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Solution
Vitamin B2 (riboflavin) is a precursor for FAD, a coenzyme involved in the TCA cycle.
Correct Answer:
C
— Vitamin B2
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Q. Which vitamin is commonly found in wine and contributes to its health benefits?
A.
Vitamin A
B.
Vitamin C
C.
Vitamin B6
D.
Vitamin K
Show solution
Solution
Vitamin K is commonly found in wine and contributes to its health benefits.
Correct Answer:
D
— Vitamin K
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