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.
Examples of water-borne and sex linked diseases are?
taeniasis and malaria
cholera and gonorrhoea
typhoid and syphilis
dracunculiasis and haemophilia
Correct answer is D
Dracunculiasis, also called Guinea-worm disease, is a parasitic infection by the Guinea worm, Dracunculus medinensis. A person becomes infected from drinking water that contains water fleas infected with guinea worm larvae.
Some of the more familiar sex-linked traits are hemophilia, red-green color blindness, congenital night blindness, some high blood pressure genes, Duchenne muscular dystrophy, and Fragile X syndrome.
In a group of male Agama lizards, the one with the brightest head colour is the
dominant
youngest
oldest
largest
Correct answer is A
No explanation has been provided for this answer.
The older fossil-bearing rocks, in contrast to the more recent ones, are more likely to contain?
animal rather than plant remains
invertebrates rather than birds
flowering plants rather than mosses
reptiles rather than fishes
Correct answer is B
No explanation has been provided for this answer.
Blood grouping in human beings is derived from combinations of
two different alleles
four different alleles
three different alleles
two different genes
Correct answer is C
The four main blood groups A, B, AB, and O are controlled by three alleles: A, B, and O.
The surest way to combine the best qualities of both parents in the offspring is by
cross-breeding
inbreeding
selective breeding
pure breeding
Correct answer is A
No explanation has been provided for this answer.