Which of the following is a correct statement about viruses? MCQ with Answer and Explanation

Which of the following is a correct statement about viruses?
A. They are living organisms that can reproduce outside a host.
B. They contain both DNA and RNA.
C. They are obligate intracellular parasites.
D. They have cell walls like bacteria.
Answer: Option C
Solution (By JKSSB Mock Tests)
Viruses are non-living outside a host cell and must hijack a host's cellular machinery to replicate, making them obligate intracellular parasites. They contain either DNA or RNA, not both (except some rare cases). They lack cell walls and metabolic machinery. Their status as living or non-living is debated, but they are biologically active only inside a host.

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The voice box or sound-producing organ in humans is the:
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Correct Answer: Option A


Explanation:
The larynx, also called the voice box, contains vocal cords that vibrate as air passes, producing sound. It is located at the top of the trachea. The trachea (windpipe) conducts air; pharynx is the common passage for food and air; bronchi lead to lungs. The larynx is cartilaginous, and in males, the thyroid cartilage forms the Adam's apple.

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Correct Answer: Option D


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Correct Answer: Option A


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