Evolution is the central unifying concept in biology. Biology can be divided into various ways. One way is by the level of biological organization, … See more

The mechanisms of evolution focus mainly on mutation, genetic drift, gene flow, non-random mating, and natural selection.
Mutation: Mutation is a change in the DNA sequence inside a gene or a chromosome of an organism. Most mutations are deleterious, or … See more

Phylogenetic Trees are representations of genetic lineage. They are figures that show how related species are to one another. They … See more

The idea of evolution by natural selection was proposed by Charles Darwin in 1859, but evolutionary biology, as an academic discipline in its own right, emerged during the period of the See more

Adaptive evolution
Adaptive evolution relates to evolutionary changes that happen due to the changes in the environment, this makes the organism suitable to … See more

In evolutionary developmental biology, scientists look at how the different processes in development play a role in how a specific organism reaches its current body plan. … See more

Genes that have shared ancestry are homologs. If a speciation event occurs and one gene ends up in two different species the genes are now orthologous. If a gene is duplicated within the a singular species then it is a paralog. A molecular clock can be used to estimate … See more