Yes it is, the relationship That includes ,a skin shreading, stomach prone; bellie sliding ; continue'ss wispering, all around, natural born ( created ) killer; with the Venom to go with it. Isn't Gods Creation wonderous?
Actually, sorry to burst your bubble, but there is no proof and there never has been supporting that only two humans were able to develop the species. Since "Adam" and "Eve" are usually depicted of the same ethnicity, there is no way possible that that DNA could have produced all of the ethnic diversity seen in humans today. It is more than likely that humans evolved over many years from different species of primates like Homo erectus. However, technically we are all related because we all came from those same primates before us. Any person is at least 50th cousins with any other given person on Earth.