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Biology WAEC Past Questions

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
101
If a cross is made between a pure-breeding red flowered plant and a pure-breeding white flowered plant
where R is dominant for red flower and r is recessive for white, the most likely result of F generation will be
  • A. 75% red flowers and 25% white flowers
  • B. all red flowers
  • C. 75% white flowers and 25% red flowers
  • D. 50% red flowers and 50% white flowers
  • E. all white flowers
View Answer & Discuss (3) WAEC 1988
102

A man with blood group A (TAP) married a woman with blood group O (pp). Which of the following is the
probable ratio of the blood groups of the offspring?

  • A. 1:1
  • B. 3:1
  • C. 2:1:1
  • D. 1:2:1
  • E. 4:1
View Answer & Discuss (3) WAEC 1988
103
Increasing specialization of structure and function among animals of the same class and order for survival in new and different environments is called
  • A. adaptive radiation
  • B. phylogeny
  • C. homology
  • D. analogy
  • E. ontogeny
View Answer & Discuss (2) WAEC 1988
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104
When large numbers of organisms share limited space and resources the result is
  • A. immigration
  • B. commensalism
  • C. symbiosis
  • D. extinction
  • E. competition
View Answer & Discuss (1) WAEC 1988
105
The change in colour of the chameleon serves as a means of
  • A. attraction to the opposite sex
  • B. repulsion of the enemy
  • C. a camouflage from a predator
  • D. regulation of body temperature
  • E. . production of a variety of skin pigments
View Answer & Discuss WAEC 1988
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