Jamb Biology 2003 Past Questions and Answers

Question 26:

• JAMB 2003

Homologous pairs of chromosome separate during

A. Cytolysis
B. Cleavage
C. Mitosis
D. Meiosis

Question 27:

• JAMB 2003

An example of a caryopsis is

A. Guava
B. Maize grain
C. Coconut
D. Tomato

Question 28:

• JAMB 2003

The response of plants to external stimuli in a non-directional manner is known as

A. Tactic movement
B. Phototropism
C. Geotropism
D. Nastic movement

Question 29:

• JAMB 2003

The most important hormone that induces the ripening of fruit is

A. Ethylene
B. Indole acetic acid
C. Gibberallin
D. Cytokinin

Question 30:

• JAMB 2003

A density-dependent factor that regulates the population size of organism is

A. Disease
B. Sudden flood
C. Drought
D. Fire outbreak