Gravitation of the Cytosine. As will be seen, in the case of the gravitation of Guanine, the evolution of the electromagnetic corollary suffers a change in its kinetics because the starting trigram is the one that generates the change of phase between the Yinn (-) and the Yang (+) sustainin the properties of the so-called time arrow between them. This can only occur in one direction and not return, and this is why the kinetics of the corollary makes a change in direction. The appearance of Cytosine and other elements is enough alone to justify the explanation of the phenomenon.