Jamb Biology 2009 Past Questions and Answers

Question 26:

• JAMB 2009

The major cause of global warning is the

A. Burning of fossil fuel
B. Construction of dams
C. Use of electricity
D. Exploration of space

Question 27:

• JAMB 2009

The uniqueness of an individual organism in a population is accounted for by

A. Evolution
B. Variation
C. Adaptation
D. Mutation

Question 28:

• JAMB 2009

A phenotypic character with intermediate forms that can be graded from one extreme to the other is referred to as

A. Discontinuous variation
B. Continuous variation
C. A mutant
D. A genome

Question 29:

• JAMB 2009

A farmer's assumption that the seed from a good harvest will produce a good yield is explained by the theory of

A. Evolution
B. Adaptation
C. Variation
D. Heredity

Question 30:

• JAMB 2009

In Mendelian inheritance, discontinuous characters are controlled by the

A. Centromeres
B. Alleles
C. Chromosomes
D. Chromatids