Then as the seeds of the genetically modified strain sprout and grow, the inserted DNA would express itself in every single cell of the growing seedlings.
(the seeds of the genetically modified strain sprout; grow; ) (the inserted DNA; would express; itself; T:as the seeds of the genetically modified strain sprout and grow)
the seeds of the genetically modified strain sprout the inserted DNA
grow would express
itself T:as the seeds of the genetically modified strain sprout and grow