Subject	crossing over
Predicate	occur
Object	between homologous chromosomes
Modality	Modality Occurrences only 1
Polarity	POSITIVE
Plausibility	0.9629
Neighborhood Sigma	0.9812
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source crossing over occur only between homologous chromosomes 1 Google Autocomplete