Jamb Biology 1978 Past Questions and Answers

Question 21:

• JAMB 1978

At fertilization

A. One chromosome from the male joins another from the female
B. One gene from the male combines with another from the female
C. The male nucleus fuses with the female nucleus
D. One set of chromosome combines with another set from the female
E. One cell from the male fuses with another from the female

Question 22:

• JAMB 1978

The neck region of the tape worm, (taenia) is responsible for the

A. Production of egg
B. Storage of egg
C. Formation of new segment
D. Development of the suckers
E. Fragmentaion of the body segment

Question 23:

• JAMB 1978

Which of these is not true of the insect? The possession of

A. Two pairs of antennae
B. Jointed appendages
C. Exoskeleton
D. Three pairs of legs
E. Segmented body

Question 24:

• JAMB 1978

Rhizopus (or mucor)obtain its food from dead organic matter extracellularly. It is said to be

A. A facultative parasite
B. Saprophyte
C. An obligate parasite
D. A commensal
E. An autotroph

Question 25:

• JAMB 1978

The feature that distinguish the toad or frog from the fish is the absence of

A. Scales
B. Lungs
C. Paired appendages
D. A tail
E. Skin glands