Barbara McClintock, Walter Sutton, Hermann J Muller, Carl Correns - Essay Example

Barbara discovered transposition and used it in demonstrating that genes turn physical characteristics on and off. Additionally, Barbara developed theories on the suppression and expression of genetic information across generations.

Walter Sutton
Walter Sutton greatly contributed to the theory of evolution. Sutton believed that it was possible to apply the Mendelian laws of inheritance to chromosomes at the cellular level of living organizations (Lynch, Jay, and Derek 56). This led to the creation of the Boveri-Sutton chromosome theory. This theory posits that chromosomes are the carriers of genetic materials. Walter Sutton, the proponent of this theory, believed that chromosomes are found in all dividing cells and are transmitted from generation to generation, thus forming the bases of inheritance.

Hermann J. Muller
Herman Muller concentrated on the study of the physiological and genetic impacts of radiation. According to Herman, radioactive fallout originating from nuclear war and nuclear testing posed a great risk to the genetic make-up of living cells (Lynch, Jay, and Derek 11). Herman revealed that there was a cross-correlation between radiation and lethal mutations, which were responsible for altering biological traits in populations.

Carl Correns
Corren’s primary focus was on botany and genetics. He independently discovered the principles of heredity, which contributes to the evolution and natural selection. Corren restated Mendel’s results including his law of independent assortment and law of segregation. These are the fundamental laws used for understanding natural selection.