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Biology 1998 JAMB Past Questions

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1
The nucleus is considered the central organelle of a cell because it
  • A. contains the genetic material
  • B. contains the nuclear sap
  • C. is bounded by the nuclear membrane
  • D. is located at the center of the cell
View Answer & Discuss (2) JAMB 1998
2
The procaryotic cell type is characterized by a
  • A. complex cytoplasm in which different regions are poorly defined
  • B. localization of different regions of the cell into tissues
  • C. collection of organelles and macromolecular complexes
  • D. simple cytoplasm with well defined regions
View Answer & Discuss (5) JAMB 1998
3
The natural tendency of organisms as they evolve is to
  • A. decrease in size
  • B. increase in number
  • C. develop specialize structure
  • D. feed indiscriminately
View Answer & Discuss (3) JAMB 1998
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4
In snails, the hard calcareous shells are secreted by the
  • A. radula
  • B. ctenidium
  • C. pneumostome
  • D. mantle
View Answer & Discuss (2) JAMB 1998
5
The structure labelled I is formed as a result of the fusion of
  • A. two pairs of nuclei
  • B. several pairs of nuclei
  • C. a pair of nuclei
  • D. two pairs of nucleoli
View Answer & Discuss (13) JAMB 1998
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