Waec Biology 1999 Past Questions and Answers

Question 56:

• WAEC 1999

The genotypic ratio of 1 : 2 : 1 in the offspring of a hybrid cross illustrates the law of

A. Use and disuse
B. Dominance
C. Segregation
D. Linkage

Question 57:

• WAEC 1999

Which of the following scientists was involved with organic evolution?

A. Mendel
B. Larmarck
C. Morgan
D. Pasteur

Question 58:

• WAEC 1999

Which of the following traits may not be important in marriage counselling

A. Sex-determination
B. Sickle-cell anaemia
C. Rhesus factor
D. Colour of skin

Question 59:

• WAEC 1999

In fishes, the brooders return to their parents mouth for

A. Feeding
B. Respiration
C. Breeding
D. Protection

Question 60:

• WAEC 1999

According to Charles Darwin’s Theory of Evolution, natural selection involves the survival of the

A. Weakest
B. Most populous
C. Youngest
D. Fittest