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.
Women do not suffer from colour blindness because
the trait is sex-linked
only men are colour blind
the genes are recessive and sex-linked
the genes occur on both the X and Y chromosomes
Correct answer is C
No explanation has been provided for this answer.
seeds are not reliable for propagating plants
uncontrolled out-crossing can introduced unwanted variability
vegetative propagation is best form of reproduction of all crop
seeds were not physiologically mature at the harvest
Correct answer is B
No explanation has been provided for this answer.
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.