Jamb Biology Past Questions and Answers

Question 1701:

• JAMB 2011

The number of alleles controlling blood groups in humans

A. 3
B. 4
C. 5
D. 2

Question 1702:

• JAMB 2011

During blood transfusion, agglutination may occur as a result of the reaction between

A. Contrasting antigens and antibodies
B. Two different antigens
C. Two different antibodies
D. Similar antigens and antibodies

Question 1703:

• JAMB 2011

The fallacy in Lamarck's evolutionary theory was the assumption that

A. Traits are acquired through disuse of body parts
B. Acquried traits are heritable
C. Acquired traits are seldom formed
D. Traits are acquired through the use of body parts

Question 1704:

• JAMB 2011

The bright coloured eye spots on the wings of moth are an example of

A. Warning colouration
B. Disruptive colouration
C. Crypsis
D. Mimicry

Question 1705:

• JAMB 2011

The wings of a bat and those of a bird are examples of

A. Convergent evolution
B. Continuous variation
C. Coevolution
D. Divergent evolution