The single molecule has at least two atoms.
The scientist who refuses to consider new evidence, assuming he or she is not biased or incompetent could do it because if there is a big amount of evidence indicating otherwise, this one new piece of evidence is unlikely and they prefer to wait for more evidence or for analysis of whether this current evidence is not false.
thus this scientist is being skeptical (practicing skepticism) by ignoring this new evidence.
The answer is a germline mutation.
The germline mutation is heritable variation in the lineage of <span>germ cells. Germ cells are cells that give rise to the gametes, so a mutation in germ cell will be seen in a sperm cell but not in a skin cell.</span>
