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1972 in science
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==Biology== * February – [[S. J. Singer]] and [[Garth L. Nicolson]] describe the [[fluid mosaic model]] of the functional [[cell membrane]].<ref>{{cite journal|author=Singer, S. J.|author2=Nicolson, G. L.|title=The fluid mosaic model of the structure of cell membranes|journal=[[Science (journal)|Science]]|volume=175|issue=4023|pages=720β31|date=1972|pmid=4333397|doi=10.1126/science.175.4023.720|s2cid=83851531 }}</ref> * September – [[Geoffrey Burnstock]] proposes the existence of a non-adrenergic, non-cholinergic ([[NANC]]) neurotransmitter, which he identifies as [[adenosine triphosphate]] (ATP), originating the term '[[purinergic signalling]]'.<ref>{{cite journal|first=Burnstock|last=G.|title=Purinergic nerves|journal=[[Pharmacological Reviews]]|volume=24|pages=509β81|year=1972|issue=3 |pmid=4404211}}</ref> * October 1 – The first publication reporting the production of a recombinant [[DNA]] molecule, by [[Paul Berg]] and colleagues, marks the birth of modern [[molecular biology]] methodology.<ref>{{cite journal | last1 = Jackson | first1= David A. | last2=Symons |first2=Robert H | last3= Berg |first3= Paul | year=1972 | title = Biochemical Method for Inserting New Genetic Information into DNA of Simian Virus 40: Circular SV40 DNA Molecules Containing Lambda Phage Genes and the Galactose Operon of Escherichia coli | journal =[[Proceedings of the National Academy of Sciences of the United States of America]]| volume = 69 | issue=10 | pages = 2904β2909 | doi=10.1073/pnas.69.10.2904 | pmid=4342968 | pmc=389671| bibcode=1972PNAS...69.2904J | doi-access= free }}</ref> * [[Niles Eldredge]] and [[Stephen Jay Gould]] publish their landmark paper on [[punctuated equilibrium]].<ref>{{cite book|last1=Eldredge|first1=N.|last2=Gould|first2=S. J.|chapter=Punctuated equilibria: an alternative to phyletic gradualism|title=Models in Paleobiology|editor=Schopf, T. J. M.|pages=82β115|publisher=Freeman, Cooper|location=San Francisco|year=1972}}</ref> * [[Socorro dove]]s (''Zenaida graysoni'') last seen in the wild. The species precariously survives in captivity. A reintroduction program is being prepared.
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