Transcription of two genes. (a) RNA polymerase moves from the 3â² end of the template strand, creating an RNA strand that grows in a 5â² â 3â² direction (because it must be antiparallel to the template strand).
The atoms in sugar do not form ions; instead, they share their electrons. The type of bond that forms from the sharing of electrons between the atoms of the table sugar is a covalent bond. Table sugar has a much more complex chemical structure than salt.
For example, in adenosine monophosphate (AMP), the phosphate is connected to the sugar via an oxygen-carbon bond (the oxygen comes from the phosphate group, the carbon from the sugar) and the sugar is in turn connected to the nitrogenous base (adenine) via a carbon-nitrogen bond, the carbon being on the sugar (different from the one above) and the nitrogen being on the base (adenine)