Before Christopher Columbus's famous voyage in 1492 and the beginning of modern transoceanic journeys, humans had established themselves on all habitable continents. This initial settlement of the continents by Homo sapiens originated approximately…
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Did you mean: crossing-over (genetic)?
The process whereby one or more gene alleles present in one chromosome may be exchanged with their alternative alleles on a homologous chromosome to produce a recombinant (crossover) chromosome which contains a combination of the alleles originally present on the two parental chromosomes.
Source: AccessScience, McGraw-Hill Education, 2019
The oldest archeological cultures of the New World, the ancestors of modern Native Americans. The Paleoindian colonizing populations of the Americas were Homo sapiens sapiens who arrived during the late Pleistocene (Ice Age) from Asia, though…
Ancient fossilized members of human beings and those species directly ancestral to modern humans. Fossil humans comprise all prehistoric skeletal remains of humans that are archeologically earlier than the Neolithic (necessarily an imprecise limit,…