[VISION] | PEOPLE: The image contains numerous email addresses and names, but no faces or physical descriptions can be provided due to privacy considerations. | TEXT: ``` From: Robert Trivers <[redacted]> Sent: 4/14/2018 5:06:12 PM To: Alan Rogers <[redacted]>; Jeffrey Epstein <[redacted]> CC: Gordon Getty <[redacted]>, Oliver Goodenough <[redacted]>, Tim Kane <[redacted]>, Rob Hanson <[redacted]>, Paul Zak <[redacted]>, Bobby McCormick <[redacted]>, Terry Anderson <[redacted]>, Clive Crook <[redacted]>, Matt Ridley <[redacted]>, Monika Gruter Cheney <[redacted]>, Dane Stangler <[redacted]>, Ron Bailey <[redacted]>, Anna Dreber <[redacted]>, Anula Jayasuriya <[redacted]>, Paul Romer <[redacted]>, Mike Cagney <[redacted]>, Evan Smith <[redacted]>, Roger Edelen <[redacted]>, Bill Prezant <[redacted]>, John Mallen <[redacted]>, Jim Halligan <[redacted]>, Marguerite Atkins <[redacted]>, Alex.Family Pines <[redacted]>, [email protected] <[redacted]>, Clair Brown <[redacted]>, Ms. Yvette Robbins <[redacted]>, Richerson, Peter J <[redacted]> Subject: Re: Free Growth (09-29-17) part 2.pdf Importance: High yes Alan i think you are you are referring to duplication of a gene—there are many such genes including those produced by retrotransposons (as evidenced by lack of introns)—where a gene has two separate effects and there is an advantage to having a gene with each effect you will often prefer two genes to one, because of less interference in fitness effects Peter was talking about a gene with a single effect—sickling—and the other allele is the normal one—the heterozygote destroys malaria within red blood cells at trivial cost and there is no cost at all if malaria is not present—by contrast homozygous sickle individuals suffer lifetime effects Peter was trying to conjure up a heterozygote that propagated asexually but this requires a chiasma between neighboring genes, a very rare event and hence it usually leads rapidly to mutational decay of one of the two copies, i.e.