Which of the following diseases is transmitted through the bite of a rabid animal?
A. Typhoid
B. Tetanus
C. Rabies
D. Malaria
Answer: Option C
Solution (By JKSSB Mock Tests)
Rabies is a viral zoonotic disease caused by the rabies virus, transmitted through the saliva of infected animals (dogs, bats, raccoons) via bites or scratches. It affects the central nervous system and is almost always fatal once symptoms appear. Post-exposure prophylaxis (wound cleaning, rabies immunoglobulin, and vaccine) is effective if given promptly.
Explanation:
Golden Rice is a transgenic variety of rice (Oryza sativa) engineered to produce beta-carotene, a precursor of Vitamin A, in the edible endosperm. The beta-carotene gives the rice grains a characteristic golden-yellow color. It was developed to address Vitamin A deficiency (VAD), a major public health issue in developing countries that causes blindness and increases susceptibility to infectious diseases in children.
Consider the following statements about the immune system:
1. Macrophages are phagocytic cells.
2. B cells produce antibodies.
3. T cells are part of innate immunity.
Which of the above is/are correct?
Explanation:
Iodine is incorporated into thyroxine (T₄) and triiodothyronine (T₃) synthesized by the thyroid gland. Deficiency leads to goiter and hypothyroidism. Iron is in hemoglobin, zinc in insulin and enzymes, cobalt in B₁₂.
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