Molecular Analysis (Essay Sample)

Role of molecular biology in evolution
Biology became an accurate discipline, ultimately equal to physics and chemistry, when Gregor Mendel established the principles of heredity in 1865. Even though it took Correns, DeVries, and Tschermak until approximately 1900 to "rediscover" his discovery for the scientific world, it was a relief for a science in trouble. The significance of his discovery was not immediately understood. The merely descriptive nature of their field's science, with its systematic taxonomy and comparative investigations, grew old to many biologists in the 20th century. The idea of evolution put forward by Charles Darwin has already given a first look at the more significant forces operating in the living world.
One of the major mental faculties of man is to relate the effects witnessed to the actions which produced them. Our ability to recall recurring events and determine their likelihood and repeatability depends on our understanding of how they are related. If a cause and effect are connected by a short chain of circumstances, this usually works well, but complexity makes it more difficult. The most complicated subjects to examine are arguably living species in their natural habitats, where causes and effects are frequently interlinked through vast multi-dimensional and interconnected meshwork rather than simple linear chains of causation.
Since Mendel's laws of genetics were related to the fundamental principles of thermodynamics, many physicists were drawn to the study of biology. For instance, the German physicist Max Delbrück, who had previously worked in the fields of astronomy and quantum physics, switched to biology in the late 1930s to investigate the fundamental principles of inheritance in the most basic organisms, namely bacterial viruses (bacteriophages) and their hosts.