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.
characters are linked
characters are not linked
parents are related
parents are not related
Correct answer is A
No explanation has been provided for this answer.
If R and r, denotes the genes for a character, the offspring of the cross between RR and Rr are
RR, 2Rr, rr
2RR, 2rr, 2rr
2RR, 2Rr
4Rr
Correct answer is C
No explanation has been provided for this answer.
A
B
AB
OO
Correct answer is C
No explanation has been provided for this answer.
All their sons will be haemophilic
all their daughters will be haemophilic
All their daughters will be carriers
all their sons will be carriers
Correct answer is C
No explanation has been provided for this answer.
Malaria symptoms are caused by
toxins released into the blood as a result of the destruction of red blood cell
the multiplication of the malaria sporozoites in the liver
the invasion of the red blood cells by the trophozoites
the development of merozoites into gametocytes
Correct answer is B
Once you're bitten by the female anopheles, the parasite enters the bloodstream and travels to the liver. The infection develops in the liver before re-entering the bloodstream and invading the red blood cells.