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.
Crossing individuals of the same species with different genetic characters is known as
cross breeding
polygenic inheritance
non-disjunction
inbreeding
Correct answer is A
No explanation has been provided for this answer.
Which of the following theories was NOT considered by Darwin in his evolutionary theory?
Variation
Survival of the fittest
Use and disuse
Competition
Correct answer is C
No explanation has been provided for this answer.
codominance
incomplete dominance
mutation
linkage
Correct answer is B
No explanation has been provided for this answer.
Lack of space in a population could lead to an increase in
water scarcity
birth rate
disease rate
dought
Correct answer is C
No explanation has been provided for this answer.
The inheritable characters that are determined by a gene located on the X-chromosome is
recessive
sex-linked
homozygous
dominant
Correct answer is B
No explanation has been provided for this answer.