## CORE INFORMATION\n✓ **Answer**: [Option B]\n## CONCEPT FRAMEWORK\n\t**Primary Concept**: Plant Pathology\n\t**Related Topics**: Bacterial diseases, Citrus diseases\n\t**Prerequisites**: Understanding of plant diseases and their classifications\n## SOLUTION PATHWAY\n**Given Information**:\n\t\tCitrus canker is a disease affecting citrus plants.\n\t\tIt is known for causing lesions and can severely affect fruit yield and quality.\n**Method & Steps**:\n\t1. Identify the type of disease.\n\t\tReasoning: Citrus canker exhibits symptoms consistent with bacterial infections, such as the presence of lesions on leaves and fruits.\n\t\tFormula/Rule: N/A\n\t2. Research the causative agent of citrus canker.\n\t\tWorking: The disease is caused by the bacterium *Xanthomonas citri*.\n\t\tKey Point: The identification of the pathogen is crucial in classifying the disease.\n\t3. Conclude the classification of the disease.\n\t\tResult: Citrus canker is classified as a bacterial disease.\n\t\tVerification: Confirmed by multiple sources in plant pathology literature.\n## OPTION ANALYSIS\n[A] :x: Viral disease: Citrus canker is not caused by a virus.\n[B] ✓: Bacterial disease: Correct, as it is caused by the bacterium *Xanthomonas citri*.\n[C] :x: Fungal disease: This disease is not caused by fungi, ruling this option out.\n[D] :x: Protozoan disease: Citrus canker does not involve protozoa, making this option incorrect.\n## LEARNING AIDS\n\t**Common Mistakes**:\n\t\t1. Confusing bacterial diseases with viral ones: Remember that bacterial diseases often have distinct symptoms like lesions.\n\t\t2. Overlooking the importance of the pathogen: Always identify the causative agent to classify the disease correctly.\n\t**Quick Tips**:\n\t\t1. Use mnemonic devices to remember types of plant pathogens.\n\t\t2. Familiarize yourself with common plant diseases and their characteristics.

The correct Option is "Bacterial disease"

## CORE INFORMATION\n✓ **Answer**: C\n## CONCEPT FRAMEWORK\n**Primary Concept**: Virus structure\n**Related Topics**: Biomolecules, Cell biology, Virology\n**Prerequisites**: Basic understanding of biological components.\n## SOLUTION PATHWAY\n**Given Information**:\n The question asks about the composition of a virus.\n**Method & Steps**:\n1. Recall the basic structure of a virus. Viruses are known to contain genetic material (nucleic acid) and a protein coat (capsid).\nReasoning: Knowledge of basic viral structure is required.\n2. Identify the correct option based on the recall.\nResult: Option C correctly states that viruses contain both nucleic acid and protein.\n## OPTION ANALYSIS\n[A] :x: Incorrect. Viruses are not solely made of nucleic acid.\n[B] :x: Incorrect. Viruses are not solely made of protein.\n[C] ✓: Correct. Viruses are composed of both nucleic acid and protein.\n[D] :x: Incorrect. Viruses are composed of biomolecules.\n## LEARNING AIDS\n**Common Mistakes**:\n1. Confusing viruses with bacteria: Viruses are much smaller and have a different structure than bacteria.\n2. Forgetting the protein component: Viruses need a capsid to protect their genetic material.\n**Quick Tips**:\n1. Use the analogy of a 'package': The nucleic acid is the 'message' and the protein is the 'envelope'.\n2. Remember the core components: Nucleic acid (DNA or RNA) and protein (capsid).

The correct Option is "Both (A) and (B)"

NEET Botany Biological Classification MCQs

Prepare for NEET Biology Biological Classification with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert guidance to classify and identify organisms.

NEET Questions / Botany / Biological Classification