Amitosis inhibitor chemotherapy drug would bind to antigens on the cancerous cell create an opposite hormonal environment take the place of a cellular metabolite in the nucleus cause dna to break during the early stages of cell division

A mitotic inhibitor chemotherapy drug would  cause the DNA to break during the early stages of cell division. Mitotic inhibitors are drugs derived from natural plant sources, and work by inhibiting cell division or mitosis, where a single cell divides into two genetically identical daughter cells. They may bind to tubulin and inhibit its polemerization into microtubules. 

Ithink the dna sequences may vary but the amino acid sequences are identical.