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.
taste bud variation
discontinuous variation
morphological variation
continuous variation
Correct answer is B
No explanation has been provided for this answer.
The protozoan plasmodium falciparum is transmitted by
female Anopheles mosquitoes
female Aedes mosquitoes
female Culex mosquitoes
Female blackfly
Correct answer is A
No explanation has been provided for this answer.
The loss of soil through erosion can be reduced by
watering
crop rotation
manuring
irrigation
Correct answer is B
Advantages of Crop Rotation
During blood transfusion, agglutination may occur as a result of the reaction between
contrasting antigens and antibodies
two different antigens
two different antibodies
similar antigens and antibodies
Correct answer is D
For example, take the blood group A, it has antigen A and antibody B. When the anti-A antibody is used on this blood group, it causes a clumping. The anti-A antibody contains Antigen A. Hence, the clumping which is called AGGLUTINATION.
How many alleles control blood grouping in humans?
3
4
5
2
Correct answer is A
No explanation has been provided for this answer.