The Question is from neet-botany biological-classification virus-viroidsprions-and-lichens, and it was created by the author Mr. NARESH KUMAR K

Question

Certain infectious particles lack nucleic acids yet cause diseases. Which of the following correctly describes the infectious agent and a disease it causes?

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
 **Primary Concept**: Infectious agents and their characteristics
 **Related Topics**: Virology, prion diseases, nucleic acids
 **Prerequisites**: Basic understanding of infectious diseases and the structure of infectious agents.
## SOLUTION PATHWAY
**Given Information**:
  The question states that certain infectious particles lack nucleic acids and cause diseases.
  We need to identify the infectious agent and the disease it causes from the given options.
**Method & Steps**:
 1. Analyze each option:
  Reasoning: We need to determine which infectious agent lacks nucleic acids and is known to cause the specified disease.
  Formula/Rule: None directly applicable.
 2. Evaluate options A, C, and D:
  Working: 
            * **A (Viroids; Potato spindle tuber disease):** Viroids are infectious agents composed of RNA, so they possess nucleic acids. 
            * **C (Viruses; Tobacco mosaic disease):** Viruses are infectious agents containing either DNA or RNA (nucleic acids). 
            * **D (Lichens; Athlete's foot):** Lichens are symbiotic organisms (fungi and algae), not infectious agents in the context of the question, and athlete's foot is caused by a fungus.
 3. Identify the correct option:
  Result: Option B, Prions; Creutzfeldt-Jakob disease, is the correct answer.
  Verification: Prions are infectious proteins that lack nucleic acids and are known to cause Creutzfeldt-Jakob disease and other transmissible spongiform encephalopathies.
 ## OPTION ANALYSIS
A :x: Viroids are RNA-based infectious agents and do cause potato spindle tuber disease, but they contain nucleic acid (RNA).
B ✓: Prions are infectious proteins that lack nucleic acids and are responsible for Creutzfeldt-Jakob disease.
 C :x: Viruses contain either DNA or RNA (nucleic acids) and cause various diseases, including tobacco mosaic disease.
D :x: Lichens are symbiotic organisms and are not related to athlete's foot, which is caused by fungi.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing prions with viroids or viruses: Remember that prions are unique in their lack of nucleic acids.
  2. Misunderstanding the nature of lichens: Lichens are not typically considered infectious agents in the context of human or plant diseases.
 **Quick Tips**:
  1.Focus on the key information: 'lack nucleic acids' and 'infectious agent'.
  2. Memorize the characteristics of prions and the diseases they cause.

Mr. NARESH KUMAR K · Answer

Viroids; Potato spindle tuber disease

Mr. NARESH KUMAR K · Answer

The correct Option is "Prions; Creutzfeldt-Jakob disease"

Mr. NARESH KUMAR K · Answer

Viruses; Tobacco mosaic disease

Mr. NARESH KUMAR K · Answer

Lichens; Athlete's foot

NEET Botany Biological Classification Virus, Viroids,Prions And Lichens MCQs

Select Topic

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

NEET Subjects

Our Bots

Company