What is evolution?
It is a gradual or a slow process in which organisms change into a different form and mostly the new for is better than the old one. As the organisms respond to changes of environment, they develop features that will enable them survive in the new environment and thus evolving.
In the evolution, we have four forces of evolution, and they are as follows:
1. Mutation; this is by which the genes or chromosome change heritable. The random variation of the genes is due to additions, deletions or substitutions of the nitrogen bases of the DNA sequence.
2. Gene flow; this is whereby two populations exchange their genetic materials; it Continue reading...