MOLECULES THAT LED TO LIFE RECREATED

 Researchers at the University of York and the University of Nottingham have recreated a pair of simple sugars molecules-threose and ereythrose-in a process which could have occurred before the advent of life. They have made the first step towards showing how the basic building blocks of life developed. But for life to have evolved, you have to have a moment when non-living everything up to that point is chemistry. They are trying to understand the chemical origins of life. According to the researchers, every biological molecule has an ability to exist in a left handed form or right- handed form. All sugars in biology are made up of the right-handed form of molecules and yet all the amino acids that make up the peptides and proteins are made up of he left- handed form. But, they found using simple left-handed amino acids to catalyse the formation of sugars resulted in the production of the predominantly right-handed form of sugars. The finding published in journal Organic & Biomolecular Chemistry, coul explain how carbohydrate originated and why the right-handed form dominates in nature.