( ( ( Parthenogenesis or ) ( virgin birth ) ) ( ( is ( ( the ( asexual ( reproductive process ) ) ) ( ( by which ) ( ( ( a ( female 's ) ) egg ) ( ( embryonic development ) ( without ( ( the ( fertilizing union ) ) ( of ( ( a ( male 's ) ) sperm ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Parthenogenesis)) (CC or) (NP (JJ virgin) (NN birth))) (VP (VBZ is) (NP (NP (DT the) (JJ asexual) (JJ reproductive) (NN process)) (SBAR (WHPP (IN by) (WHNP (WDT which))) (S (NP (NP (DT a) (NN female) (POS 's)) (NN egg)) (VP (VBD embryonic) (NP (NN development)) (PP (IN without) (NP (NP (DT the) (JJ fertilizing) (NN union)) (PP (IN of) (NP (NP (DT a) (NN male) (POS 's)) (NN sperm)))))))))) (. .)))
Parthenogenesis or virgin birth is the asexual reproductive process by which a female's egg embryonic development without the fertilizing union of a male's sperm.
(ROOT (S (NP (JJ Asexual) (NN reproduction)) (VP (VBZ generates) (NP (JJ new) (NNS individuals)) (PP (IN without) (NP (NP (NN fusion)) (PP (IN of) (NP (DT an) (NN egg) (CC and) (NN sperm)))))) (. .)))