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Biology Past Questions and Answers

Jamb 2009 Biology Questions

Question 26:
The uniqueness of an individual organism in a population is accounted for by
  • A Evolution
  • B Variation
  • C Adaptation
  • D Mutation
View Answer & Explanation
Question 27:
A phenotypic character with intermediate forms that can be graded from one extreme to the other is referred to as
  • A Discontinuous variation
  • B Continuous variation
  • C A mutant
  • D A genome
View Answer & Explanation
Question 28:
A farmer's assumption that the seed from a good harvest will produce a good yield is explained by the theory of
  • A Evolution
  • B Adaptation
  • C Variation
  • D Heredity
View Answer & Explanation
Question 29:
In Mendelian inheritance, discontinuous characters are controlled by the
  • A Centromeres
  • B Alleles
  • C Chromosomes
  • D Chromatids
View Answer & Explanation
Question 30:
A woman with the ability to roll her tongue (Tt) marries a man who cannot roll his tongue(tt). what is the probability of each of their children being a tongue roller?
  • A 100%
  • B 75%
  • C 50%
  • D 25%
View Answer & Explanation