How endosymbionts transfer genes to the host nucleus

A cell living inside another cell can slowly give up its genes

When one organism becomes a permanent part of another cell, some of its genes can move into the host's DNA. Once the host has a working copy, the original gene can disappear. Repeated many times, this slowly shifts genetic control from the inner organism to its host.

Abandoned siege gear helped build Rhodes’s Colossus

After Demetrius Poliorketes gave up his year-long siege of Rhodes in 304 BC, the Rhodians sold the equipment he left behind. They used the money to build a statue of their sun god Helios, later counted among the Seven Wonders of the Ancient World.

A trench held off a much larger force

At the Battle of the Trench in Medina in 627, about 3,000 Muslim defenders used a trench across approaches open to cavalry. They held off a coalition of about 10,000 for two weeks, until it withdrew.

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How endosymbionts transfer genes to the host nucleus

A cell living inside another cell can slowly give up its genes

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