"Structure moléculaire." . . . . "Biologie moléculaire Histoire." . . "dissymétrie stéréochimie structure moléculaire." . . . . . . . "La Molécule et son double" . "La molécule et son double" . . "The molecule and its double"@en . "The molecule and its double" . . . . . . . . . . "Science is haunted by an enigma: Amino acids, which make up living matter, are able to exist, chemically speaking, in two forms, a left and a right, like our two hands, yet strangely enough they are all found to belong to the same \"hand.\" Pasteur said that these natural molecules were \"dissymmetrical.\" Another discovery has just reopened the question. The Universe itself, we find, is characterized by a decisive break in symmetry, one that has given matter the upper hand over antimatter." . . "Science is haunted by an enigma: Amino acids, which make up living matter, are able to exist, chemically speaking, in two forms, a left and a right, like our two hands, yet strangely enough they are all found to belong to the same \"hand.\" Pasteur said that these natural molecules were \"dissymmetrical.\" Another discovery has just reopened the question. The Universe itself, we find, is characterized by a decisive break in symmetry, one that has given matter the upper hand over antimatter."@en . . . . . . "Enantiomères." . . "Chiralité." . .