How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.
The diagram below is an illustration of a cross between plants A and B of the same species. Study it and answer the question below.
YYRR
YyRr
yyRr
yyrr
Correct answer is A
No explanation has been provided for this answer.
Which of the following diseases can be inherited?
Pneumonia
Whooping cough
Sickle cell anemia
Malaria
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements about chromosomes is correct?
All the chromosomes of a species are the same shape
The number present in a specie is constant
They are neatly arranged in a cytoplasm
They bear ribosomes on their outer membranes
Correct answer is B
No explanation has been provided for this answer.
Measurements of height and weight of students in a class show
discontinuous variation
continuous variation
shortness is more prevalent
fatness is less prevalent
Correct answer is B
No explanation has been provided for this answer.
Variation which exhibits a wide range from one extreme to the other is
phenotypic variation
discontinuous variation
continuous variation
genotypic variation
Correct answer is C
No explanation has been provided for this answer.