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because nitrogen atoms are a component of dna, they were labelled and therefore tracked in replication in bacteria.
because nitrogen atoms are a component of dna, they were labelled and therefore tracked in replication in bacteria.
it opened the avenue to the solution of the self-consistent field equations for small molecules like hydrogen or nitrogen.
it opened the avenue to the solution of the self-consistent field equations for small molecules like hydrogen or nitrogen.
http://plantnet.rbgsyd.nsw.gov.au/plantnet/cycad/index.html* gymnosperm database: cycads* fairchild tropical botanic garden- one of the largest collection of cycads in the world in florida, u.s.a.* palm and cycad societies of australia (pacsoa)* the cycad society of south africa* cycad nitrogen fixation* cycad toxicity* cycads - foto* "the cult of the cycads", new york times magazine article on cycad collectorship and cycad smuggling* cycads an annotated link directory
http://plantnet.rbgsyd.nsw.gov.au/plantnet/cycad/index.html* gymnosperm database: cycads* fairchild tropical botanic garden- one of the largest collection of cycads in the world in florida, u.s.a.* palm and cycad societies of australia (pacsoa)* the cycad society of south africa* cycad nitrogen fixation* cycad toxicity* cycads - foto* "the cult of the cycads", new york times magazine article on cycad collectorship and cycad smuggling* cycads an annotated link directory"'