Editing Primordial soup (section)

==Haldane's theory==
[[File:JBS Haldane, circa 1914.jpg|thumb|right|121px|J.B.S. Haldane]]
J.B.S. Haldane independently postulated his primordial soup theory in 1929 in an eight-page article "The origin of life" in ''The Rationalist Annual''.<ref name="lazcano10"/> According to Haldane the primitive Earth's atmosphere was essentially reducing, with little or no oxygen. [[Ultraviolet rays]] from the Sun induced reactions on a mixture of water, carbon dioxide, and ammonia. Organic substances such as sugars and protein components ([[amino acid]]s) were synthesised. These molecules "accumulated till the primitive oceans reached the consistency of hot dilute soup." The first reproducing things were created from this soup.<ref>{{cite journal|last1=Haldane|first1=J.B.S.|title=The origin of life|journal=The Rationalist Annual|date=1929|volume=148|pages=3–10|url=http://breadtagsagas.com/j-b-s-haldane-the-origin-of-life-1929/|access-date=2017-09-19|archive-date=2017-10-04|archive-url=https://web.archive.org/web/20171004164015/http://breadtagsagas.com/j-b-s-haldane-the-origin-of-life-1929/|url-status=live}}</ref>

As to the priority over the theory, Haldane accepted that Oparin came first, saying, "I  have very little doubt that Professor Oparin has the priority over me."<ref>{{cite journal|last1=Miller|first1=Stanley L.|last2=Schopf|first2=J. William|last3=Lazcano|first3=Antonio|title=Oparin's ''Origin of Life'': Sixty Years Later|journal=Journal of Molecular Evolution|date=1997|volume=44|issue=4|pages=351–353|doi=10.1007/PL00006153|pmid=9089073|bibcode=1997JMolE..44..351M|s2cid=40090531}}</ref>