I believe that the answer is Cells or carbon.
<h2>Explaining what is atomic number since there's no choices.</h2>
<h3>The atomic number or proton number of a chemical element is the number of protons found in the nucleus of every atom of that element.The atomic number uniquely identifies a chemical element.It is identical to the charge number of the nucleus.</h3>
<span>The answer is exchange of genetic material between homologous chromosomes. Homologous chromosomes are comprised of chromosome sets of around a similar length, centromere position, and recoloring design, for qualities with the same comparing loci.</span>
? I don’t get it?? Picture?
