They feared that one day the two organisms might naturally exchange genes without any external intervention.

If there is local organic gene/protein life, it may exchange genes with the colonizing microorganisms, increasing galactic biodiversity.

When the populations come back into contact, they have evolved such that they are reproductively isolated and are no longer capable of exchanging genes.

The pool was formed by a community of cells that frequently exchanged genes by lateral transfer.

Some scientists believe that instead of a single organism being the last universal common ancestor, there were populations of organisms exchanging genes by lateral gene transfer.

This makes pigs a host where influenza viruses might exchange genes, producing new and dangerous strains.

New species are formed through the process of speciation, often caused by geographical separations that prevent populations from exchanging genes with each other.

The possibility of H5N1 and H3N2 exchanging genes through reassortment is a major concern.

It can exchange genes with another subspecies and become a new, "mixed" subspecies.