Jamb Biology 2005 Past Questions and Answers

Question 46:

• JAMB 2005

A yellow maize is crossed with a white maize and the first filial generation produce yellow maize only. The white trait is said to exhibit

A. Dominance
B. Recessiveness
C. Codominance
D. Incomplete dominance

Question 47:

• JAMB 2005

The association in which one member benefits and the other is relatively unaffected by the interaction is termed

A. Symbiosis
B. Parasitism
C. Commensalism
D. Mutualism

Question 48:

• JAMB 2005

When a peacock displays its colourful feathers, it is

A. Ready for a fight
B. Protecting itself from predators
C. Protecting its mate from predators
D. Courting a female

Question 49:

• JAMB 2005

When an animal has a dark-coloured dorsal surface and a light-colouration ventral surface, this is an adaptation called

A. Concealment colouration
B. Countershading
C. Colour blending
D. Disruptive colouration

Question 50:

• JAMB 2005

The only caste in the termite colony are the members can feed themselves are the

A. Reproductives
B. Workers
C. Nymphs
D. Soldiers