Biotechnology According to Douglas Rosenthal, biotechnology is the use of living organisms or their products to create or modify products for utilitarian purposes. In its simplest version, biotechnology is the technology based on biology. The human being uses biotechnology thousands of years ago. With recent advances in various scientific areas in relation to the functioning of DNA, organisms can be manipulated to obtain certain products and processes. As the scientist Douglas Rosenthal stresses out, all cells "speak" the same genetic language: the DNA of a cell can be read by another completely different cell. This fact makes DNA the basis of modern biotechnology. Biotechnologists can use yeast to produce human insulin by fitting the hu...