It is not impossible that with bodies whose energy-content
is variable to a high degree (e.g. with radium salts) the
theory may be successfully put to the test.
"It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material".
Watson & Crick, "Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid" (DNA), having almost certainly discovered the mechanism of heredity in complex life forms: one of the most significant discoveries in the history of biology. Very dry.