This method is so reliable that is constitutes legal proof in a court of law. For example, if person A shares more than fifty-percent of their genes with person B, then person B is person AвЂ™s mother or father. Phylogeny is the method of categorizing organisms based upon their DNA, whereas Linnaean taxonomy is a method of classifying animals based upon their morphology. In addition to the plotting out genes, this hierarchy is cross confirmed by phylogeny and Linnaean taxonomy. The only way to make sense of this hierarchy is that it is a family tree. When the pattern of resemblances is plotted out, it forms a beautiful hierarchy.

This even works with pseudo genes, which are genes that no longer function. In particular, scientists compare the letter to letter correspondences between the genes. Through modern DNA techniques, scientists can compare the pattern of resemblances between the genes of any two animals. Just as scientists can appeal to DNA to determine whether person A is biologically related to person B, scientists can determine whether organisms are related to each other by using modern-day DNA techniques. If there is one nail in the coffin that substantiates evolutionary theory, it is genetics. So sit back, dear reader, as we travel down high-school biology memory lane for an updated lecture on evolutionary theory. Yet there is a plethora of exciting discoveries that confirm evolutionary theory which far exceed examples of peppered moths. Too often, high-school students are referred to pictures of peppered moths as examples of evolution. As the late Russian Orthodox Christian Theodosius Dobzhansky wrote, вЂњNothing in biology makes sense except in light of evolution.вЂќ Yet despite more than 150 of evolutionary progress, many Americans still deny evolution as a scientific fact. Since then, the theory of evolution has been confirmed to a remarkable degree. Darwin published his theory in the Origin of Species more than 150 years ago. Although the great scientist is extinct, the theory of evolution-that all organisms are descended from a single, common ancestor-is more alive than ever. Today marks the 205th birthday of the late Charles Darwin.

Charles darwin&#39;s theory of evolution

Charles darwin's theory of evolution