Fashionable people developed a ‘egocentric’ X chromosome after Africa exodus

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The chromosome could comprise areas that promote their DNA’s unfold by killing sperm that carry Y chromosomes. Nevertheless, Y chromosomes could have developed counter mechanisms over time

Life



23 November 2022

Some fashionable people that had not lengthy left Africa could have developed an X chromosome that carried “egocentric” DNA

SCIEPRO/SCIENCE PHOTO LIBRARY

Round 50,000 years in the past, a brand new X chromosome seems to have been launched into fashionable people that had not lengthy left Africa.

There was in all probability exceptionally robust choice for components of this chromosome as a result of, right now, most individuals of less-recent African ancestry have inherited these areas.

Kasper Munch Terkelsen at Aarhus College in Denmark, who led the analysis, thinks these areas could comprise bits of so-called egocentric DNA that promote their …

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