What is a double helix?

The double spiral is a geometric shape consisting of two helixs around the same axis. Helix is ​​a twisting of a spiral shape such as a spring. Two helixs in this shape are the same, which means they are the same in every dimension, albeit in different positions around the axis. The double spiral can be either right -handed or left -handed, depending on whether they join clockwise or counterclockwise. Double helix DNA is right handed and consists of two strands or spinals of phosphate and sugar associated with bases of adenine, thymine, guanine and cytosine, often abbreviations that always connect on the other side to one side on one side on one side on one side on one side on one side on one side on one side on one side on one side that on one side on one side that on one side on one side on one side on one side on one side on one side on one sideOn the one hand on one side on one side on one side on one side on one side, on one side on one side, that on one side, on one side on one side, that on one side on one side, which concerns that on one side. the other side. These four nucleotides are responsible for coding genetic information in the human genome. The shape of the DNA was first published in 1953 by molecular biologists Francis Crick and James D. Watson. Although the double helix is ​​rare, the shape is not limited to the bottom. Another interesting example that occurs naturally is in the shape of a cosmic nebula in the galaxy of the Milky Way photographed in 2006.

Scientists believe that this "DNA Nebula" was made up of a twisted magnetic field line passing through its center. Field lines can be anchored to the body orbiting black hole in the center of the dairy dRahy, about 300 light -years since the nebula. Although this nebula is the only known kind of its kind, scientists speculate that there are more of them in the whole universe, although perhaps not in this galaxy.