Since the same type of preference spreads in both nascent species, the evolution of assortative mating and reproductive isolation depends on a "one-allele" mechanism sensu Felsenstein (1981).
Overall preferences were spread evenly between the three methods.
For the palatable chips, the preferences were spread more evenly than for the case where one type of chip was undesirable.
This body of evidence also signifies interregional dispersal from peninsular India or northern Pakistan, leading to environmental preferences that spread quickly through hominin populations in the region within a relatively short timespan.
The Chinese have no single preference but spread their passion among basketball, football, badminton and table tennis.
It is on Form Popof's own record label, which he created in 2008 that he expresses his own musical preferences and spreads those perceptions of others.
Based on the transmission data obtained on multiple avian and human-adapted viruses over the past several years it is improbable that an influenza virus possessing a strong α2,3 SA receptor preference would spread efficiently among humans [13], [16].
