Biology 1998 Jamb Past Questions and Answers

Question 1 :

• JAMB 1998

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

Question 2 :

• JAMB 1998

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

Question 3 :

• JAMB 1998

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

Question 4 :

• JAMB 1998

In snails, the hard calcareous shells are secreted by the

A. Radula
B. Ctenidium
C. Pneumostome
D. Mantle

Question 5 :

• JAMB 1998

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