Population Genetics: A Concise Guide by Dr. John H. Gillespie
English | September 5, 1997 | ISBN: 0801857554 | 181 pages | PDF | 8 MB
"In a species with a million individuals," writes John H. Gillespie, "it takes roughly a million generations for genetic drift to change allele frequencies appreciably. There is no conceivable way of verifying that genetic drift changes allele frequencies in most natural populations. Our understanding that it does is entirely theoretical.