Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R):
Assertion (A) : Viruses are molecular parasites.
Reason (R) : Viruses depend on host for their basic functions like replication.
In light of the above statements, choose the correct answer from the options given below:
नीचे दो कथन दिए गए हैं, एक को अभिकथन (A) और दूसरे को कारण (R) के रूप में लेबल किया गया है:
अभिकथन (A) : विषाणु (viruses) आण्विक परजीवी (molecular parasites) हैं।
कारण (R) : विषाणु अपने बुनियादी कार्यों जैसे प्रतिकृति (replication) के लिए पोषक (host) पर निर्भर करते हैं।
उपरोक्त कथनों के आलोक में, नीचे दिए गए विकल्पों में से सही उत्तर चुनिए:
EXPLANATION
Statistics & Experimental Designs
Nature of Viruses as Molecular Parasites:
- Assertion (A) is TRUE: Viruses are non-cellular sub-microscopic entities comprising only genetic material (DNA or RNA) enclosed in a protein coat. They are referred to as 'molecular parasites' because they possess genetic information but lack an independent metabolic machinery.
- Reason (R) is TRUE and correctly explains (A): Viruses lack ribosomes, ATP-generating enzymes, transfer RNAs, and metabolic substrates. Consequently, they are obligate intracellular parasites that completely hijack the host cell's molecular machinery (ribosomes, polymerases, amino acids, and energy) to synthesize viral proteins and replicate viral genomes.
Therefore, both (A) and (R) are true and (R) is the correct explanation of (A).
Correct Answer: Option 1.
विस्तृत व्याख्या:
Nature of Viruses as Molecular Parasites (विषाणु: आण्विक परजीवी):
- Assertion (A) is TRUE: Viruses are non-cellular sub-microscopic entities comprising only genetic material (DNA or RNA) enclosed in a protein coat. They are referred to as 'molecular parasites' because they possess genetic information but lack an independent metabolic machinery.
- Reason (R) is TRUE and correctly explains (A): Viruses lack ribosomes, ATP-generating enzymes, transfer RNAs, and metabolic substrates. Consequently, they are obligate intracellular parasites that completely hijack the host cell's molecular machinery (ribosomes, polymerases, amino acids, and energy) to synthesize viral proteins and replicate viral genomes.
Therefore, both (A) and (R) are true and (R) is the correct explanation of (A).
Correct Answer: Option 1.
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