Jamb Biology 2004 Past Questions and Answers

Question 36:

• JAMB 2004

The scarcity of food causes a sudden decrease in population size by

A. Decreasing the reproductive rate
B. Bringing about immigration
C. Raising the mortalility rate
D. Minimizing the rate of competition

Question 37:

• JAMB 2004

The soil type that will be most difficult to plough in a wet season is one that is

A. Loamy
B. Clayey
C. Sandy
D. Silty

Question 38:

• JAMB 2004

A farm practice that result in the loss of soil fertility is

A. Mixed farming
B. Bush fallowing
C. Shifting cultivation
D. Continous cropping

Question 39:

• JAMB 2004

Paternity dispute can most accurately be resolved through the use of

A. Finger printing
B. Blood group typing
C. DNA analysis
D. Tongue-rolling

Question 40:

• JAMB 2004

In a Mendelian cross of red and white varieties of the four O"clock plants, the F₁ generation expresses incomplete dominance by having flower which are

A. White
B. Red
C. Pink
D. Multicoloured