Help for the structure/grammer of this sentence
'In short order thereafter, the general concept that homologous recombination was part of a broader aspect of DNA metabolism, a process that not only repairs DNA with breaks, either single-stranded or double- stranded, but one that also intersects and overlaps with transcription and mismatch repair, and is affected by and affects chromosome structure. '
I think 'the general concept' is the subject， what is the verb? and object?
all the orange colored parts are the clause for me.
Thanks for any help!