The cells of plants and animals carry their instructions in the form of DNA (Deoxyribonucleic acid), which is contained in genes. To make a protein, the sequence of genetic letters in each gene gets copied into matching strands of RNA (Ribonucleic acid) in a process called expression, which then float out of the nucleus to guide the protein-making machinery of the cell in a process called translation.
Until very recently, genetically engineered organisms were created by deletion of some of the genes in their genetic makeup or insertion of genes from external sources into their genetic makeup. This article is the third of a four-series feature on genetic engineering, after Genetic Engineering – Definition, History, Benefits and Risks, and, Genetic Engineering – The Great GMO Debate. Its aim is to highlight several advances in genetic engineering where organisms such as plants and animals have been modified without interfering with the composition and sequence of genes in their genetic makeup, which has not only been controversial, but is also very expensive and labor intensive.
For the last seventeen yearsContinue Reading "Genetic Engineering – Recent Advances; the Promise of Tomorrow"