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Biology 1997 JAMB Past Questions

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41
One of the most effective ways of controlling guinea worm is by
  • A. treating the disease
  • B. public enlightenment campaigns
  • C. accelerating rural developmnet
  • D. provision of portable drinking water
View Answer & Discuss (6) JAMB 1997
42
During binary fission in lower organisms, the nucleus is known to undergo
  • A. mitosis
  • B. meiosis
  • C. fragmentation
  • D. mutation
View Answer & Discuss (5) JAMB 1997
43

One reason for the success of Mendel's work is that he

  • A. was the first to carry out research work on modern genetics
  • B. introduced quantitative and qualitative elements into his work
  • C. selected two characteristics only at a time for study
  • D. drew up his laws of inheritance based on his knowledge of chromosomes
View Answer & Discuss (20) JAMB 1997
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44

The homozygous condition HbsHbsresults in sickle cell anaemia whereas HbAHbs has the sickling trait. What is the probability that a couple with the sickling trait will give birth to one normal child?

  • A. 1/2
  • B. 1/4
  • C. 1/8
  • D. none
View Answer & Discuss (25) JAMB 1997
45

Which of the following characters is NOT sex-linked?

  • A. Albinism
  • B. Baldness
  • C. Haemophilia
  • D. Colour blindness
View Answer & Discuss (31) JAMB 1997
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