Lesley Docksey, Buckland Newton, Dorset Carole Lewis (letter, 11 May) mentions Cameron, Osborne and Clegg as being descended from relatively recent immigrants from Europe and that if their policies had been in place from the 19th century, they would not be here now.
One of the biggest battles in human anthropology rages over whether modern humans descended from relatively recent emigrants from Africa or from several populations of early hominids, including Neandertals.
As most are descended from relatively few progenitor lines they share haplotypes with one another.
Causes of inversions are dependent upon local topography and meteorology interactions, including when rapid overnight cooling of the earth's surface causes cooling of air near the surface, compared to higher altitude air (i.e., radiative inversion), or when high pressure systems descend into relatively cooler low elevation areas (i.e., subsidence), both of which may occur in the Pittsburgh region.
The sameness results from the insects' having gone through a genetic bottleneck -- all of them having descended from a relatively small group.
But there are genes that are more likely to occur in Europeans, who are descended from a relatively tiny population that made its way up the continent, than in Africans.
As most of the modern genotypes cultivated today have descended from a relatively small number of landraces, the genes controlling important traits have reduced diversity compared to the gene pool of landraces and wild relatives.
Our findings suggest that the Baltic population of A. oxyrinchus descended from a relatively small number of founders originating from the northern extent of the species' range in North America.
As Mansfield descended into the tough, relatively cash-strapped Conference, Saunders sank about £500,000 in personally to fight the financial fires which flared up around them.
Quite large boulders are rolled in this way, even when the river descends at a relatively low angle".
