question:  How do they create neutroids?
context: They were such cute synthetic creatures, it was impossible not to love them. If I don't want to follow my aptitudes, the only choice is common labor. And because I have a B.S. in biology and an aptitude for dealing with people. Destroying unclaimed units is the smallest part of it. With its population legally fixed at three hundred million, most of the country had become one big suburb, dotted with community centers and lined with narrow belts of industrial development. The felines were emotionally safer than the quasi-human chimp-K series called "neutroids." When a pet neutroid died, a family was broken with grief; but most couples could endure the death of a cat-Q or a dog-F. Class-C couples were allowed two lesser units or one neutroid. Attention All District Inspectors: Subject: Deviant Neutroid. Seize all animals in this category, impound, and run proper sections of normalcy tests. This could be a ruse to bring a stop to investigations when one animal is found. If allowed to reach age-set or adulthood, such a deviant could be dangerous to its owner or to others. Its replacement-quota of new neutroids was around three hundred animals a month. He tried to estimate how many of July's influx had been K-99s from Bermuda Factory. And there were only eleven empty neutroid cages in his kennel. A week's deadline for finding and testing forty neutroids would put him in a tight squeeze. "The baby turned out to be a neutroid. Of course, no hospital would play along with her fantasy and take a neutroid, especially since she couldn't pay for its treatment." You're welcome to it, Doctor, but you can't fake a serial number. Only thirty-five of July's Bermuda-K-99s had entered his territory, and they were about equally divided among five pet shops, three of which were in Wylo City. The robot operator, which had on tape the working habits of each Wylo City citizen, began calling numbers.
output:  They change the structure of unfertilized egg genes using sub-atomic particles.
options:  They modify the glandular makeup of chimpanzee ova using hormones.  They incubate chimpanzee ova, giving them testosterone to keep the animals from developing ovaries.  They bombard the unfertilized eggs with radiation.  They change the structure of unfertilized egg genes using sub-atomic particles.