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Friday, 13 November 2026
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Biology Past Questions and Answers

Waec Biology Questions

Question 1361:
What will be the chromosome number of the hybrid of two varieties of a plant with 36 chromosomes in the endosperm cell?
  • A 12
  • B 24
  • C 35
  • D 48
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Question 1362:
Kreb’s cycle occurs in the
  • A Mitochondria
  • B Cytoplasm
  • C Nucleus
  • D Ribosomes
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Question 1363:
The process whereby electrons are emitted from chlorophyll and returned to it unchanged is known as
  • A Non-cyclic phosphorylation
  • B Photochemical reaction
  • C Photophorylation
  • D Cyclic photophorylatlion
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Question 1364:
Which of the following statements about photosynthesis is not true?
  • A Plants can photosynthesize without an increase in dry weight
  • B Carbon dioxide is absorbed by the leaves in bright light
  • C Oxygen is produced during photosynthesis from the breakdown of water
  • D Photosynthesis occurs in green plants
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Question 1365:
The removal of all the phloem tissues of the stem of a plant close to the root system for a long period of time is likely to
  • A Provide more energy to the roots
  • B Accumulate more starch in the roots
  • C Cause the underground roots to develop buds
  • D Cause the p ant to wither and die
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