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PPSC MCQs

Punjab Public Service Commission — Complete MCQ Bank

2,026 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.
PPSC preparation illustration
931
Biology Medium Uploaded: 14 Jul 2026

Which molecule is the primary energy currency of cells?

  • AATP
  • BADP
  • CNAD
  • DNADP
932
Biology Medium Uploaded: 14 Jul 2026

What is the term for two different alleles for a trait in an organism?

  • AHomozygous
  • BCodominant
  • CDominant
  • DHeterozygous
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Biology Medium Uploaded: 14 Jul 2026

What is the term for two identical alleles for a trait in an organism?

  • AHomozygous
  • BHeterozygous
  • CCarrier
  • DCodominant
934
Biology Medium Uploaded: 14 Jul 2026

What is the term for an organism that carries a recessive allele but does not show the trait?

  • ADominant
  • BCarrier
  • CHomozygous
  • DHeterozygous
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Biology Medium Uploaded: 14 Jul 2026

What is the term for a permanent change in the DNA sequence of an organism?

  • AMutation
  • BAdaptation
  • CVariation
  • DAllele
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Biology Medium Uploaded: 14 Jul 2026

Which process converts mRNA information into a protein sequence at ribosomes?

  • ATranscription
  • BTranslation
  • CReplication
  • DTransduction
937
Biology Medium Uploaded: 14 Jul 2026

Which process copies DNA information into mRNA in the nucleus?

  • ATranslation
  • BReplication
  • CTransduction
  • DTranscription
938
Biology Medium Uploaded: 14 Jul 2026

Which molecule carries genetic information from DNA to ribosomes for protein synthesis?

  • AmRNA
  • BtRNA
  • CrRNA
  • DsnRNA
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Biology Medium Uploaded: 14 Jul 2026

What is the term for a community of organisms interacting with their physical environment?

  • ABiome
  • BPopulation
  • CEcosystem
  • DCommunity
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Biology Medium Uploaded: 14 Jul 2026

What is the term for all the populations of different species living and interacting in the same area?

  • ACommunity
  • BPopulation
  • CBiosphere
  • DEcosystem