Partensky says natural selection seems to be selecting for smaller genomes in this microbe to economize on DNA production and save space in the cell necessary requirements to live where nutrients are scarce.
Although the exact nature of the selective pressures remains unclear, selection seems to favour heterozygotes and low-frequency alleles, leading ultimately to high levels of allelic diversity at the MHC locus.
The Ryan selection seems to endorse and put stock in the second theory.
Come to think of it, that may be a problem, since the annual Thanksgiving selection seems to paralyze many people.
As one consumer rights' advocate said, the selection seems to have been designed "for the supermarkets, not the people".
The default selection seems to be the paper dosas, impossibly thin, crisp and delicate and just right with the traditional potato-onion mixture ($6.95).
Natural selection seems to be much more efficient than expected at ridding the population of dangerous genes, even of those that act well after the age of reproduction.
Indeed, this dynamic of reciprocal altruism, as mediated by natural selection, seems to have inclined us toward belief in some fairly abstract principles, notably the idea that good deeds should be rewarded and bad deeds should be punished.
Relations between the festival and the popular Quinzaine des Réalisateurs (Directors' Fortnight), at the other end of the Croisette, have always been tense, as the official selection seems to skim the cream off the milk.
"True, at most places the selection seems to be horrible," says the photographer Hilary Walsh, who lives in Silver Lake and dresses her 14-month-old son, Henry, in clothing that is mostly vintage.
Thus, positive feedback through environmentally mediated selection seems to have increasingly enhanced biodiversity through the Phanaerozoic.
