Final answer:
The weight and Quaternary form of HSP-70 proteins is 140 kDa; dimer.
Step-by-step explanation:
The weight and Quaternary form of HSP-70 proteins is option B) 140 kDa; dimer.
Quaternary structure is a term used to describe proteins composed of two or more polypeptides. In this case, HSP-70 proteins have a dimeric quaternary structure, which means they consist of two polypeptides.