Jamb Biology 2014 Past Questions and Answers

Question 36:

• JAMB 2014

A couple has 10 children, all female. Which of the following best explains the situation

A. The sex determination was by the man's X chromosome
B. The man's sperm count is low
C. The woman is not capable of producing male children
D. The sex determination was by the man's Y chromosome

Question 37:

• JAMB 2014

A biological agent with antiviral property is

A. Interferon
B. Enzyme
C. Antibiotic
D. Disinfectant

Question 38:

• JAMB 2014

One of the advantages of outbreeding is

A. Pests tolerance
B. Disease resistance
C. Fast growth
D. Tall height

Question 39:

• JAMB 2014

An individual with blood group AB can receive blood from those in blood group(s)

A. A, B, AB, O
B. A, AB and O only
C. AB only
D. A and B only

Question 40:

• JAMB 2014

The stream-lined shape of fishes is an adaptation for

A. Securing mates
B. Easy movement
C. Obtaining food
D. Defence and attack