Health and disease, immunology, microbes, plant and animal husbandry.
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Q1 · Biology and Human Welfare · MEDIUM
Bacillus thuringiensis (Bt) toxin genes have been successfully incorporated into cotton plants to provide resistance against lepidopteran pests. The toxin becomes active and binds to receptors in the insect gut because:
Q2 · Biology and Human Welfare · EASY
Cyclosporin A, an immunosuppressant drug used to prevent organ transplant rejection, is produced by which microorganism?
Q3 · Biology and Human Welfare · MEDIUM
Antibiotics are widely used to treat bacterial infections, but their misuse has led to the emergence of antibiotic-resistant bacteria. Which of the following mechanisms is NOT a common way bacteria develop antibiotic resistance?
Q4 · Biology and Human Welfare · MEDIUM
A dairy farm uses Lactobacillus acidophilus to produce probiotic yogurt. Which of the following mechanisms BEST explains the health benefit of consuming this product?
Q5 · Biology and Human Welfare · EASY
Cyclosporin A, an immunosuppressant used in organ transplantation, is produced by which microorganism?