The Unselfish Gene of the novel is a nod to Richard Dawkins' 1976 book, "The Selfish Gene". Among the concepts developed in Dawkins' book is a theory of how natural selection may favor self-sacrifice and other forms of altruism. The themes of altruism and small gene sets play an important role in plot and character development in The Unselfish Gene. The Unselfish Gene is what might be termed "semi-hard" science fiction. The technology described in the book is well within the limits of early 21st century technology. Some of it, such as "The Anita", an atomic-bomb powered heavy lifter space ship, was actually
Gene-centered view of evolution to independent segregation. And the high prevalence of horizontal gene transfer in bacteria and archaea means that genomic combinations of these asexually reproducing groups are also transient in evolutionary time: "The traditional view, that prokaryotic evolution can be understood primarily in terms of clonal divergence and periodic selection, must be augmented to embrace gene exchange as a creative force." The gene as an informational entity persists for an evolutionarily significant span of time through a lineage of many physical copies. In his book "River out of Eden", Dawkins coins the phrase "God's utility function" to explain his view on genes