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Biology 1982 JAMB Past Questions

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21

Treatment of a poor soil with lime supplies

  • A. Sulphur
  • B. Calcium
  • C. Phosphorus
  • D. Sodium
  • E. Nitrogen
View Answer & Discuss (5) JAMB 1982
22
In the enzyme (amlyase) reactions of starch → sugar
starch is referred to as the
  • A. substrate
  • B. product
  • C. enzyme
  • D. enzyme-substrate complex
  • E. reaction mixture
View Answer & Discuss (5) JAMB 1982
23
ONE of the major causes of haemophilia is lack of
  • A. firbrinogen
  • B. amylase
  • C. white blood corpuscles
  • D. red blood corpuscles
  • E. plasma
View Answer & Discuss (12) JAMB 1982
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24
In man, identical twins occur when
  • A. An ovum is fertilized by a sperm and then divide into two, each forming a separate embryo
  • B. an ovum fertilized by two sperms and then divides into two, each forming an embryo
  • C. two ova are fertilized at the same tine each forming an embryo
  • D. two ova are fertilized by a single sperm each forming an embryo after fertilization
  • E. one ovum first divides into two and each half is fertilized by a sperm before developing into an embryo
View Answer & Discuss (4) JAMB 1982
25

The parts of the mammalian eye that strongly bend light rays are the

  • A. cornea and the lens
  • B. cornea and aqueous humour
  • C. cornea and vitreous humour
  • D. lens and aqueous humour
  • E. lens and vitreous humour
View Answer & Discuss (15) JAMB 1982
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