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Tuesday, 23 June 2026
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Biology Past Questions and Answers

Biology Questions

Question 221:
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 222:
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 223:
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
Question 224:
Nitrification means
  • A Conversion of nitrates to nitrogen
  • B Fixing nitrogen into plants
  • C Conversion of nitrates to nitrites
  • D Changing of ammonia to nitrities, then nitrates
  • E Nitrogen cycle
View Answer & Explanation
Question 225:
Which of the following statements is NOT true of menstruation?
  • A It occurs monthly
  • B The discharge contains amniotic fluid
  • C Its signifies no conception
  • D It involves the lining of uterus
  • E It may cause pains
View Answer & Explanation