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#1
By Zain
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Medium
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24 Apr 2026
What is the primary mechanism of gene therapy used to treat inherited blindness?
💡 Explanation:Gene therapy for inherited retinal diseases works by using a viral vector to deliver a healthy, functional version of a mutated gene directly into the patient's cells to restore protein production.
#2
By TheQuizWire
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Hard
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Fact Checked
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20 Mar 2026
Which vitamin deficiency is characterized by the ‘four Ds’ (dermatitis, diarrhea, dementia, and death) and is historically linked to maize-heavy diets?
💡 Explanation:Pellagra is caused by a deficiency of Niacin (Vitamin B3). It was historically prevalent in regions where maize was the primary food source because maize is low in tryptophan and its niacin is chemically bound unless treated with alkali.
#3
By Zain
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Medium
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18 Mar 2026
In pharmaceutical manufacturing, what are the primary chemical components responsible for a drug’s intended therapeutic effect called?
💡 Explanation:Active Pharmaceutical Ingredients (APIs) are the raw materials responsible for the medicinal effect of a drug. High reliance on imported APIs can lead to healthcare vulnerabilities during global supply chain disruptions.
#4
By Zain
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Medium
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17 Mar 2026
Which biological mechanism primarily links vitamin D deficiency to sleep-related breathing disorders such as snoring and obstructive sleep apnoea?
💡 Explanation:Vitamin D plays a critical role in neuromuscular control and muscle strength. Deficiency weakens the muscles responsible for keeping the upper airway open during sleep, leading to airway collapse and snoring.
#5
By Zain
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Medium
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Fact Checked
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17 Mar 2026
What is the primary objective of food biofortification in public health nutrition?
💡 Explanation:Biofortification is the process of increasing the density of vitamins and minerals in a crop through plant breeding or agronomic practices, ensuring that the food is more nutritious from the point of harvest.
#6
By Zain
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Medium
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04 Mar 2026
Which chemical compound is the primary cause of toxicity and death in cases of adulterated or illicit homemade liquor?
💡 Explanation:Methanol is a toxic alcohol used in industrial products. When ingested, it is metabolized into formic acid, leading to metabolic acidosis, blindness, and organ failure.
#7
By Zain
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Medium
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01 Mar 2026
Which body does the Surgeon General of the United States lead as its operational head?
💡 Explanation:The Surgeon General is the operational head of the U.S. Public Health Service Commissioned Corps, an elite uniformed service of public health professionals.
#8
By Zain
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Easy
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21 Feb 2026
What is the primary public health objective of the World Health Organization’s recommendation for regular physical activity?
💡 Explanation:The World Health Organization (WHO) emphasizes consistent physical activity as a core strategy to mitigate the risks of chronic, non-communicable illnesses and to enhance overall metabolic and cardiovascular health.
#9
By Zain
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Medium
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15 Feb 2026
What is the primary function of the Anterior Cruciate Ligament (ACL) in the human knee joint?
💡 Explanation:The Anterior Cruciate Ligament (ACL) is one of the four main ligaments in the knee. Its critical function is to prevent the tibia (shinbone) from sliding anteriorly (forward) on the femur (thighbone) and to limit rotational movement in the joint.
#10
By Zain
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Medium
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08 Feb 2026
Intentional pauses shift the body’s response from sympathetic activation to which component of the autonomic nervous system?
💡 Explanation:The Autonomic Nervous System (ANS) has two main branches: the Sympathetic Nervous System (SNS), which is activated during 'fight or flight' stress, and the Parasympathetic Nervous System (PNS), which promotes 'rest and digest' and recovery. Intentional pauses activate the PNS.
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