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.
natural selection
struggle for survival
independent assortment
the use and disuse of body parts
Correct answer is D
The theory implies that the more you use a part of your body, with time that part of your body starts adjusting in order to make the work easy.
Louis Pasteur
Gregor Mendel
Robert Hooke
Jean Lamarck
Correct answer is D
This is the law of use and disuse propounded by Jean-Baptiste Lamarck.
The chemical bond that holds the bases of the two strands of DNA together is
oxygen bond
hydrogen bond
electrovalent bond
covalent bond
Correct answer is B
Hydrogen bonds form between the nitrogenous bases in one strand and the nitrogenous bases in the other strand of DNA.
14
56
28
7
Correct answer is A
Mitosis is a process of cell reproduction in which one cell gives rise to two genetically identical daughter cells of the same number. Hence, the daughter cell has the same number as the parent cell prior to the process.
Genes that remain linked are those
close to each other on the chromosomes
on the same locus on the chromosomes
on the homologous chromosomes
that are allelic pairs
Correct answer is A
Linked genes are genes that are found near each other on the same chromosome.