Waec Biology 1993 Past Questions and Answers

Question 51:

• WAEC 1993

Which of the following diseases or disorders can be prevented by the application of the knowledge of
heredity through marriage counselling?

A. Sickle cell anaemia
B. Haemophilia
C. Diabetes mellitus
D. Colour blindness
E. River blindness

Question 52:

• WAEC 1993

Study the genetic cross above showing the inheritance of blood groups from the cross above which of the following F offspring does not
belong to the father?

A. AA
B. AO
C. OB
D. OO
E. AB

Question 53:

• WAEC 1993

Which of the following is a function of the chromosome?

A. Transmission of hereditary traits
B. Protein synthesis
C. Excretion
D. Energy production
E. Manufacture of enzyme

Question 54:

• WAEC 1993

Which of the following does not illustrate adaptation to the
environment?

A. Colour changes by chameleon
B. Streamline shape of fishes
C. Light bones in birds
D. Development of big muscles by a weight lifter
E. Possession of tins by fishes

Question 55:

• WAEC 1993

The changing of colour by a chameleon to that of the environment is
an example of

A. Adaptive radiation
B. Protective coloration
C. Courtship display
D. Display of body colour
E. Territorial behaviour