I&#x27;m happy you&#x27;re open to learning more about evolution.<p>Genetic linkage is a fairly advanced concept. For example, this (great) introductory Yale course doesn&#x27;t even mention it. <a href="http:&#x2F;&#x2F;oyc.yale.edu&#x2F;ecology-and-evolutionary-biology&#x2F;eeb-122#sessions" rel="nofollow">http:&#x2F;&#x2F;oyc.yale.edu&#x2F;ecology-and-evolutionary-biology&#x2F;eeb-122...</a><p>Every gene is next to another gene. You are right, the scenario you are detailing is unlikely - correspondingly, it happens very rarely.<p>Complex things we don&#x27;t understand often seem magical.