( ( ( ( Covered ( in ( Lab 9 ) ) ) ( Seed ( Plant ( Sporophyte ( secondary oocyte ) ) ) ) ) ( ( A ( haploid cell ) ) ( ( ( whose chromosome ) number ) ( was ( reduced ( when ( ( a ( diploid ( primary oocyte ) ) ) ( underwent meiosis ) ) ) ) ) ) ) ) . )
(ROOT (SINV (VP (VBN Covered) (PP (IN in) (NP (NNP Lab) (CD 9)))) (VP (VBZ Seed) (NP (NNP Plant) (NNP Sporophyte) (JJ secondary) (NN oocyte))) (NP (NP (DT A) (JJ haploid) (NN cell)) (SBAR (WHNP (WP$ whose) (JJ chromosome) (NN number)) (S (VP (VBD was) (VP (VBN reduced) (SBAR (WHADVP (WRB when)) (S (NP (DT a) (JJ diploid) (JJ primary) (NN oocyte)) (VP (VBD underwent) (NP (NNS meiosis)))))))))) (. .)))
Covered in Lab 9 Seed Plant Sporophyte secondary oocyte A haploid cell whose chromosome number was reduced when a diploid primary oocyte underwent meiosis.
(ROOT (S (NP (NP (DT The) (NN cell)) (VP (VBG starting) (NP (NNS meiosis)))) (VP (VBZ is) (VP (VBN called) (NP (DT a) (JJ primary) (NN oocyte)))) (. .)))