Change: unhabiteduninhibited part of the earth. There you have waited and lived for 20/30 years, patiently waiting for the last zombie to rot away, drawing off the ocationaloccasional raider attack. You send a scout party to finally check on the outside world, and when (if) they come back, you   View changes from previous version. (Word count: 360)

Change: genetic variability.To calculate your group's Ne, use this simple ecuation i found in this page of wikipedia: Where Nm is male population and Nf is female population (of reproductive age)Notes:A study proved that periodical masturbation improves sperm health.Captured raiders can be used as "DNA donators".   View changes from previous version. (Word count: 360)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 378)

Change: whole country/continent/world.The aincient taboo of incest came into being for a reason (a reason that appearently many European royal families didn't hear about): Inbreeding.If close relatives procreate during various generations, it can lead to exposure of recessive genetic traits. This can lead to: Reduced fertility   View changes from previous version. (Word count: 378)

Change: efective population is "the number of breeding individuals in an idealized population that would show the same amount of dispersion of allele frequencies under random genetic drift or the same amount of inbreeding as the population under consideration"An effective popullation for dummies is: "the number of   View changes from previous version. (Word count: 346)

Change: You somehow managed to settle in a little ,previously unhabited part of the earth. There you have waited and lived for 20/30 years, patiently waiting   View changes from previous version. (Word count: 201)