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Biology 1999 WAEC Past Questions

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51
The major types of man’s finger prints do not include
  • A. arch
  • B. compound
  • C. simple
  • D. loop
View Answer & Discuss (2) WAEC 1999
52
Which of the following is an example of discontinuous variation?
  • A. Height of students
  • B. Complexion of beauty contestants
  • C. Blood groups of patients
  • D. Weight of weight lifters
View Answer & Discuss (1) WAEC 1999
53
Which of the following statements is correct about variation?
  • A. Offsprings are different from their parents only
  • B. Offsprings from the same parents look alike
  • C. Offsprings differ from their ancestors but look like their immediate parents
  • D. offsprings differ from their ancestors and from each other
View Answer & Discuss (2) WAEC 1999
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54
Which of the following statements about sex determination is correct? At fertility
  • A. the probability of male to female offspring is 1/2
  • B. the Y chromosome of the father decreases the probability of having a male child to 3/4
  • C. the xx chromosome of the mother decreases the probability of having a female child to 3/4
  • D. the vigour of either parents determines the sex of the offspring
View Answer & Discuss (1) WAEC 1999
55
The genotypic ratio of 1 : 2 : 1 in the offspring of a hybrid cross illustrates the law of
  • A. use and disuse
  • B. dominance
  • C. segregation
  • D. linkage
View Answer & Discuss WAEC 1999
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