The fluttering of a butterfly’s wing in Rio de Janeiro, amplified by atmospheric currents, could cause a tornado in Texas two weeks later.
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The presence of chromosomes of North African origin (E3b1b-M81; Cruciani et al., 2004) [in Rio de Janeiro] can also be explained by a Portuguese-mediated influx, since this haplogroup reaches a frequency of 5.6% in Portugal (Beleza et al., 2006), quite similar to the frequency found in Rio de Janeiro (5.4%) among European contributors.
The presence of chromosomes of North African origin (E3b1b-M81; Cruciani et al., 2004) [in Rio de Janeiro] can also be explained by a Portuguese-mediated influx, since this haplogroup reaches a frequency of 5.6% in Portugal (Beleza et al., 2006), quite similar to the frequency found in Rio de Janeiro (5.4%) among European contributors.