Aptamers that pass the placenta cause only humans with xx sex chromosome to live When the aptamers or monoclonal antibodies linked to a toxin like tx_26 accumulate at the zygote or fetus the zygote or fetus is terminated producing abortion of any zygote or fetus with non XX sex chromosomes The biological weapon would also produce opiate peptides precluding neural based sensation e coli are published as producing monoclonal antibodies thus producing aptamers (areas of monoclonal antibodies) along with a 48 mer peptide toxin has technological references Biological weapons that cause only humans with ovaries to be fetuses as well as humans cause social change modifying society I have a perception that frequently weapons have been thought of as a technology that modifies societies. It is possible a society only composed of humans able to bear live young would have different approaches to social or state interactions