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Thursday, 02 April 2026
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Biology Past Questions and Answers

Jamb Biology Questions

Question 21:
Normally any character shown by an organism is due to the effects of
  • A Hormones and chromosomes
  • B Chromosomes
  • C Mutation
  • D Hormones and genes
  • E Genes and enviroment
View Answer & Explanation
Question 22:
Which of the following statement is NOT true of symbiosis?
  • A Symbionts must be living
  • B It is an association of 'give and take'
  • C The association may involve two plants
  • D Association between two similar species
  • E Symbionts derive mutual benefit
View Answer & Explanation
Question 23:
A person whose blood can be donated to all other people, must have the blood group
  • A O
  • B AB
  • C B
  • D A
  • E None of the above
View Answer & Explanation
Question 24:
If Benedict's solution gives a positive result in a food test, the food contains
  • A Sugar
  • B Protein
  • C Oil
  • D Fat
  • E Cellulose
View Answer & Explanation
Question 25:
A surprising fact about sickle cell disease is that it
  • A Affects only black people
  • B Kills the patient
  • C Is hereditary
  • D Affects blood cells
  • E Weakens the patient
View Answer & Explanation