Waec Biology Past Questions and Answers

Question 1391:

• WAEC 2011

What is the probability? of a man of blood group AB married to a woman of blood group O producing a child of blood group O?

A. 0%
B. 25%
C. 50%
D. 75%

Question 1392:

• WAEC 2011

A man with blood group It I^A I^A is married to a woman with blood group I^A I^O. The blood group of their son is likely to be

A. A
B. O
C. B
D. AB

Question 1393:

• WAEC 2011

Natural selection is a consequence of

A. Distribution of organisms
B. Adverse conditions
C. Variation in organisms
D. Inbreeding

Question 1394:

• WAEC 2011

Which of the following components of Larmark’s theory of evolution is considered faulty?

A. Individuals of the same species growing under different environmental conditions differ from each other
B. Use of certain organs result in development of those parts
C. Unused organs degenerate
D. Changes that result in individuals of the same species are transmitted to offspring

Question 1395:

• WAEC 2011

A vestigial structure in humans is

A. Earlobe
B. Toe bone
C. Tail bone
D. Spleen