Nevertheless, genetic circuits can function differently even in different strains of the same species of bacteria.
Here we run into the question whether sequences that differ by few amino-acids represent different strains of the same species or different species.
Even between different strains of the same species considerable differences may exist.
"We can even differentiate between different strains of the same organism if that's desired".
Surprisingly, even among different strains of the weed Arabidopsis thaliana, Dr. Bomblies said, "some crosses fail catastrophically".
The next stage of the research will involve testing different strains of the crop and comparing them with conventional Camelina.
Breeders, of course, have been creating new crops for centuries by cross-breeding different strains of the same plant species.
What is more, medical researchers have found eight different strains of the H.I.V.-1 virus in China, which would make treatment complicated even if drugs were readily available.
"There are politicians who are twisting and abusing religion and different strains of the same religion in order to further their own political objectives," he said.
The vaccines protect against different strains of the virus, therefore preventing not only cervical cancer but also sexually transmitted genital warts.
Psychologist Sara E Rosenquist noted the complexity of the research, including a Finnish study of married couples which found that husbands and wives often carried different strains of the virus in their genitals and mouths, and indeed had different strains of the virus from each other, and there was no clear link with oral sex.
