The Question is from neet-botany biological-classification , and it was created by the author D VINOD

Question

Viroids differ from viruses in that they lack:

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: [A]
## CONCEPT FRAMEWORK
	**Primary Concept**: Differences between viroids and viruses
	**Related Topics**: Infectious agents, plant pathology
	**Prerequisites**: Basic understanding of virology
## SOLUTION PATHWAY
**Given Information**:
		- Viroids are small, circular RNA molecules.
		- Viruses consist of nucleic acids (DNA or RNA) surrounded by a protein coat.
**Method & Steps**:
	1. Identify the key components of viroids and viruses.
		Reasoning: Viroids are simpler than viruses and do not have certain structures.
		Formula/Rule: N/A
	2. Determine what a virus has that a viroid does not.
		Working: Viroids lack a protein coat, which is characteristic of viruses.
		Key Point: The presence of a protein coat is essential for the structure of viruses.
	3. Conclude the differences based on the identified features.
		Result: Viroids lack a protein coat, which is the primary distinguishing feature from viruses.
		Verification: Confirmed through definitions of viroids and viruses in virology literature.
## OPTION ANALYSIS
[A] ✓: Viroids do not possess a protein coat, which is a hallmark of viruses.
[B] :x: Viroids contain genetic material (RNA); this statement is incorrect.
[C] :x: Both viroids and viruses can be infectious; this statement is incorrect.
[D] :x: Viroids can replicate within host cells, though they do so differently than viruses; this statement is incorrect.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing the structures of viroids and viruses: Remember, viroids are much simpler and lack protein coats.
		2. Misunderstanding the concept of infectivity: Both can be infectious, but their mechanisms differ.
	**Quick Tips**:
		1. Recall that viroids are often associated with plant diseases, which can help remember their characteristics.
		2. Use the mnemonic 'V for Virus, P for Protein' to remember that viruses have protein coats, while viroids do not.

D VINOD · Answer

The correct Option is "A protein coat"

D VINOD · Answer

Genetic material

D VINOD · Answer

Infectivity

D VINOD · Answer

The ability to replicate

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