record player(Noun) An analogue electronic device for playing gramophone records. record player. A type of musical device and product created and designed in various colors, materials, mechanisms, needle, arm, shapes, sizes and styles used to play a variety of records on.
Almost everybody who talks about DNA can tell you it is double stranded. And that it forms a twisted ladder or a double helix. But few people can tell us why. DNA is a spiral for a number of reasons that have to do with what it is made of. Let's dig deeper, break open the DNA and figure out why it is put together in that shape.
DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix.n some other organisms, RNA is the genetic material and, in reverse fashion, the DNA is transcribed from it.) DNA is a double-stranded molecule held together by weak hydrogen bonds between base pairs of nucleotides.