( It ( ( is ( assumed ( that ( ( ( prokaryotic cells ) ( arising ( from ( a ( single colony ) ) ) ) ) ( ( are ( genetically ( identical ( since ( they ( reproduce ( via ( binary fission ) ) ) ) ) ) ) ) ( -LRB- ( ( ( a form ) ( of ( asexual reproduction ) ) ) -RRB- ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (VP (VBN assumed) (SBAR (IN that) (S (NP (NP (JJ prokaryotic) (NNS cells)) (VP (VBG arising) (PP (IN from) (NP (DT a) (JJ single) (NN colony))))) (VP (VBP are) (ADJP (RB genetically) (JJ identical) (SBAR (IN since) (S (NP (PRP they)) (VP (VB reproduce) (PP (IN via) (NP (JJ binary) (NN fission))))))) (PRN (-LRB- -LRB-) (NP (NP (DT a) (NN form)) (PP (IN of) (NP (JJ asexual) (NN reproduction)))) (-RRB- -RRB-))))))) (. .)))
It is assumed that prokaryotic cells arising from a single colony are genetically identical since they reproduce via binary fission (a form of asexual reproduction).
(ROOT (S (NP (JJ Prokaryotic) (NNS organisms)) (VP (VB reproduce) (ADVP (RB asexually)) (PP (IN through) (NP (JJ binary) (NN fission)))) (. .)))