Potato Late Blight and Irish Famine MCQs

Prepare for Potato Late Blight and Irish Famine MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

22 Solved Questions • 17 Mins Practice • Updated for 2026 Competitive Exams
MCQS
2026 Solved Edition · Updated October 2026 · Verified Editorial Standards

Welcome to the verified preparation module for Potato Late Blight and Irish Famine MCQs on McqsMind. This comprehensive set offers solved multiple-choice questions with answers, detailed explanations, and authentic past-paper style questions aligned with the latest syllabus of Plant Pathology (Agriculture).

100% Verified Answer Keys CSS, PMS, FPSC, PPSC, NTS Ready 2026/2027 Syllabus Guidelines

Direct Definition & Conceptual Scope

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Potato Late Blight and Irish Famine constitutes an essential examination topic within Agriculture, evaluating theoretical principles, historical context, and practical problem-solving applications. On MCQsMind, candidates practice verified past-paper solutions, conceptual breakdowns, and syllabus-aligned questions tailored for CSS, PMS, and competitive screening examinations.

Solved Questions

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22 MCQs Page 1

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Topic Notes: Potato Late Blight and Irish Famine

Quick Revision 2 min read 14 key points
Section 1 of 5

1 1. Pathogen Identification

3 points
  • Definition
    Phytophthora infestans: The oomycete pathogen responsible for late blight in potatoes, historically misclassified as a fungus but now placed in the kingdom Chromista (or Stramenopila).
  • Fact
    Oomycete Characteristics: Unlike true fungi, P. infestans has cell walls composed of cellulose and glucans rather than chitin, making it biologically distinct and resistant to many standard fungicides.
  • Fact
    Host Range: Primarily infects Solanaceous crops, with potatoes and tomatoes being the most economically significant hosts susceptible to rapid tissue necrosis.
Section 1 / 5
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1
What is the primary reason for the rapid evolution of Phytophthora infestans?
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2
Which part of the potato plant does Phytophthora infestans infect besides the leaves?
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3
The genetic vulnerability of the Irish potato crop during the famine is a classic example of what agricultural risk?
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4
What term describes the rapid destruction of potato foliage caused by late blight?
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5
Which chemical was historically the first effective fungicide used to control late blight?
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6
What is the primary overwintering structure of Phytophthora infestans?
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7
Which scientist is credited with proving that Phytophthora infestans was the cause of late blight, rather than a consequence of it?
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8
The Irish Potato Famine significantly influenced the development of which scientific discipline?
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9
What is the characteristic symptom of late blight on potato foliage?
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10
Which historical potato variety was most widely cultivated in Ireland before the famine, making it highly susceptible to late blight?
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Pedagogical Syllabus Blueprint

Potato Late Blight and Irish Famine MCQs: Preparation Strategy & Exam Blueprint

Examination Weightage & Commission Distribution

In Pakistan's premier competitive examinations—including the Federal Public Service Commission (FPSC General Recruitment & CSS MPT), Punjab Public Service Commission (PPSC Lecturer, Tehsildar & PMS Screening), KPPSC, SPSC, and BPSC—questions derived from Potato Late Blight and Irish Famine MCQs consistently constitute a decisive 10% to 25% weightage of the Plant Pathology paper. Testing agencies frequently evaluate both foundational factual recall and deeper analytical comprehension, requiring aspirants to master key dates, statutory articles, constitutional clauses, and thematic definitions.

High-Yield Conceptual Pillars & Distractor Analysis

Historical trend analysis across past five-year examination cycles demonstrates that examiner traps frequently involve closely matched numerical alternatives, chronologically contiguous treaties, and semantic subtleties in statutory phraseology. When preparing Potato Late Blight and Irish Famine MCQs, candidates must deliberately review the underlying rationale provided for every question rather than merely memorizing raw answer options. Understanding why incorrect distractors fail is the most reliable predictor of achieving top percentiles in computerized and optical mark recognition (OMR) screening tests.

Negative Marking Mitigation & Time Management Protocol

For examinations enforcing negative marking penalties (such as PPSC's 0.25-mark deduction per erroneous response or NTS gatekeeper quotas), an aggressive elimination technique must be deployed. Candidates should systematically rule out improbable options first to elevate probability thresholds from 25% to 50% or 100%. Allocating an average of 45 to 60 seconds per item during mock trials builds the psychological stamina and cognitive precision required to complete 100-question papers within official 90-minute time limits.

Recommended Reference Sources & Statutory Reading

To achieve definitive conceptual mastery in Agriculture, candidates are advised to cross-reference our solved explanations with primary gazettes, statutory texts, and canonical academic textbooks. Verifying controversial questions against authentic official repositories guarantees that prospective civil servants and professional candidates present incontestable answers during both optical paper evaluations and viva voce departmental interviews.