  Quantum Chromodynamics is thought to be the relativistic quantum field theory
that describes the strong interaction of the Standard Model. This interaction
produces mesons but it is also able to generate quark-quark (diquark)
correlations inside baryons. In this work, we employ a continuum approach to
QCD based on Dyson-Schwinger equations to calculate the electromagnetic form
factors of the proton and analyze in a deeper way the consequences of having
strong diquark correlations. Comparison with the experimental data reveals that
the presence of strong diquark correlations within the proton is sufficient to
understand empirical extractions of the flavour-separated form factors. The
explained reduction of the ratios $F_{1}^{d}/F_{1}^{u}$ and
$F_{2}^{d}/F_{2}^{u}$ at high $Q^{2}$ in the quark-diquark picture are
responsible of the precocious scaling of the $F_{2}^{p}/F_{1}^{p}$ observed
experimentally.
