Coop et al. (2009) found "a selected allele that strongly differentiates the French from both the Yoruba and Han could be strongly clinal across Europe, or at high frequency in Europe and absent elsewhere, or follow any other distribution according to the geographic nature of the selective pressure. However, we see that the global geographic distributions of these putatively selected alleles are largely determined simply by their frequencies in Yoruba, French and Han (Figure 3). The global distributions fall into three major geographic patterns that we interpret as non-African sweeps, west Eurasian sweeps and East Asian sweeps, respectively." COUNT 5
QSN1 What thing that strongly differentiates the French from some other populations be clinal across Europe? ANS1 a selected allele QSN2 When did Coop and others find out something about a selected allele? ANS2 2009 QSN3 How many major geographic patterns do the global distributions fall into? ANS3 three QSN4 What are sweeps? ANS4 major geographic patterns QSN5 Something that is found at high frequency in Europe could be what elsewhere? ANS5 absent