They investigated how the gene in question was passed from parents to their offspring, finding a preferential transmission of the serotonin receptor gene variant to offspring with OCD.
(They; investigated; how the gene in question was passed from parents to their offspring, finding a preferential transmission of the serotonin receptor gene variant) Context(They investigated,List([0, 17))):(the gene in question; was passed; to their offspring)
They investigated,List([0, 17))
They the gene in question
investigated was passed
how the gene in question was passed from parents to their offspring, finding a preferential transmission of the serotonin receptor gene variant
to their offspring