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PPSC MCQs

Punjab Public Service Commission — Complete MCQ Bank

1,262 Questions
Exam Preparation Guide

How to prepare for PPSC

PPSC examinations recruit candidates for Punjab government departments and commonly test general knowledge, current affairs, English and post-related subjects.

Punjab AffairsGeneral KnowledgeCurrent AffairsEnglish
Give special attention to Punjab geography, history and administration alongside the advertised post’s specialist syllabus.
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All Subjects Biology Chemistry Computer Science Current Affairs English Everyday Science General Knowledge Islamic Studies Mathematics Pakistan Studies Physics
211
Biology Easy

Which scientist proposed the theory of evolution by natural selection?

  • AGregor Mendel
  • BLouis Pasteur
  • CCharles Darwin
  • DAristotle
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Correct Answer: Option C — Charles Darwin
Explanation: Charles Darwin proposed the theory of evolution by natural selection in his 1859 book On the Origin of Species explaining how species change over generations through differential reproduction.
Submitted by: PaperMCQs
212
Biology Medium

What is the term for the variety of life on Earth including all species ecosystems and genetic variation?

  • AEvolution
  • BBiodiversity
  • CEcology
  • DTaxonomy
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Correct Answer: Option B — Biodiversity
Explanation: Biodiversity refers to the variety of life on Earth at all levels including genetic diversity species diversity and ecosystem diversity and is essential for ecosystem stability.
Submitted by: PaperMCQs
213
Biology Medium

Which vitamin is essential for the clotting of blood?

  • AVitamin A
  • BVitamin C
  • CVitamin E
  • DVitamin K
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Correct Answer: Option D — Vitamin K
Explanation: Vitamin K is essential for blood clotting as it activates several clotting factors in the coagulation cascade and its deficiency can lead to excessive bleeding.
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214
Biology Easy

What is the largest organ in the human body?

  • ASkin
  • BLiver
  • CLungs
  • DHeart
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Correct Answer: Option A — Skin
Explanation: The skin is the largest organ of the human body covering the entire external surface and functions as a protective barrier regulating temperature and enabling sensation.
Submitted by: PaperMCQs
215
Biology Easy

Which organ in the human body is responsible for pumping blood throughout the body?

  • AHeart
  • BLungs
  • CLiver
  • DKidney
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Correct Answer: Option A — Heart
Explanation: The heart is a muscular organ that pumps blood throughout the body via the circulatory system supplying oxygen and nutrients to tissues and removing waste products.
Submitted by: PaperMCQs
216
Biology Easy

What is the scientific study of heredity and genetic variation called?

  • AEcology
  • BBiochemistry
  • CGenetics
  • DCytology
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Correct Answer: Option C — Genetics
Explanation: Genetics is the branch of biology that studies heredity and genetic variation in organisms exploring how traits are passed from parents to offspring through genes.
Submitted by: PaperMCQs
217
Biology Medium

Which blood group is known as the universal recipient?

  • AO negative
  • BAB positive
  • CA positive
  • DB positive
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Correct Answer: Option B — AB positive
Explanation: AB positive blood group is the universal recipient because individuals with this blood type can receive blood from donors of any ABO and Rh blood group.
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218
Biology Medium

Which blood group is known as the universal donor?

  • AAB positive
  • BA negative
  • CB negative
  • DO negative
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Correct Answer: Option D — O negative
Explanation: O negative blood is the universal donor type because it lacks A B and Rh antigens on red blood cells making it compatible for transfusion to recipients of any blood type.
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219
Biology Medium

What is the term for the genetic makeup of an organism?

  • APhenotype
  • BKaryotype
  • CGenotype
  • DGenome
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Correct Answer: Option C — Genotype
Explanation: Genotype refers to the complete set of genetic information or alleles present in an organism that determines its inherited traits and potential phenotypic characteristics.
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220
Biology Medium

What is the term for the physical appearance or observable characteristics of an organism?

  • AGenome
  • BGenotype
  • CKaryotype
  • DPhenotype
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Correct Answer: Option D — Phenotype
Explanation: Phenotype refers to the observable physical and biochemical characteristics of an organism resulting from the interaction of its genotype with the environment.
Submitted by: PaperMCQs
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