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Biology 1993 JAMB Past Questions

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41
Carbon monoxide poisons tissue by
  • A. constricting the blood vessels
  • B. killing the cells
  • C. combining with haemoglobin
  • D. rupturing the blood vessels
View Answer & Discuss (6) JAMB 1993
42
Which of the following is an example of discontinuous variation observed in man?
  • A. Skin colours
  • B. Tongue rolling
  • C. Body weight
  • D. Height
View Answer & Discuss (3) JAMB 1993
43

During blood transfusion, agglutination may occur when

  • A. contrasting antigens reacts with contrasting antibodies
  • B. similar antigens react with similar antibodies
  • C. two different antigens react with each other
  • D. two different antibodies react with each other
View Answer & Discuss (13) JAMB 1993
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44

In the illustration above, the genotypes of the offsprings are

  • A. 1 heterozygous smooth : 2 homozygous smooth : 1 wrinkled
  • B. 1 homozygous smooth : 2 heterozygous smooth : 1 wrinkled
  • C. 2 homozygous smooth : 2 wrinkled
  • D. 3 heterozygous smooth : 2 wrinkled
View Answer & Discuss (8) JAMB 1993
45
Cold blooded animals are referred to as
  • A. poikilothermic
  • B. homothermic
  • C. polythermic
  • D. homeostatic
View Answer & Discuss JAMB 1993
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