( ( During ( anaphase II ) ) ( , ( ( the ( spindle fibers ) ) ( again ( ( ( ( pull ( the chromosomes ) ) ( apart ( to ( ( opposite poles ) ( of ( ( ( ( ( the cell ) ; ) however ) , ) ( this time ) ) ) ) ) ) ) ( it ( is ( ( ( ( ( the ( sister chromatids ) ) ( that ( are ( being ( split apart ) ) ) ) ) , ) ( instead of ) ) ( ( the pairs ) ( of ( ( homologous chromosomes ) ( as ( in ( the ( first ( meiotic step ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) ) )
(ROOT (S (PP (IN During) (NP (JJ anaphase) (NNP II))) (, ,) (NP (DT the) (JJ spindle) (NNS fibers)) (ADVP (RB again)) (VP (VBP pull) (NP (DT the) (NNS chromosomes)) (ADVP (RB apart) (PP (TO to) (NP (NP (JJ opposite) (NNS poles)) (PP (IN of) (NP (NP (DT the) (NN cell)) (: ;) (ADVP (RB however)) (, ,) (NP (DT this) (NN time))))))) (SBAR (S (NP (PRP it)) (VP (VBZ is) (NP (NP (NP (DT the) (JJ sister) (NNS chromatids)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBG being) (VP (VBN split) (ADVP (RB apart)))))))) (, ,) (CONJP (RB instead) (IN of)) (NP (NP (DT the) (NNS pairs)) (PP (IN of) (NP (NP (RB homologous) (NNS chromosomes)) (PP (RB as) (IN in) (NP (DT the) (JJ first) (JJ meiotic) (NN step))))))))))) (. .)))
During anaphase II, the spindle fibers again pull the chromosomes apart to opposite poles of the cell; however, this time it is the sister chromatids that are being split apart, instead of the pairs of homologous chromosomes as in the first meiotic step.
(ROOT (S (NP (JJ Spindle) (NNS fibers)) (VP (VBP pull) (NP (VBN linked) (NNS chromosomes)) (PP (ADVP (RB apart)) (IN in) (NP (JJ anaphase) (NN i.))))))