Yes I think the “lambda” form is close to the most efficient structure that bacterial virus can take. The really interesting question is if this common form is

Yes I think the “lambda” form is close to the most efficient structure that bacterial virus can take. The really interesting question is if this common form is a case of convergent evolution, or if the lack of similarity between all the viral genomes is due to the ancient origins of this virus. One thing is certain and that is that we have barely scratched the surface of genetic diversity on this planet.