Once a complex structure is lost, it cannot be regained is:
Dollo’s law reflects key principle in quiz on molecular evolution pyqs solved -sec d, where evolutionary mechanisms shape genetic variation and adaptation. In this context, Dollo’s law aligns with experimental and theoretical evidence from population genetics, behavioral ecology and molecular phylogeny. Textbooks like Campbell Biology, Futuyma Evolution and Hartl Principles illustrate supporting data. Understanding why Dollo’s law fits helps integrate natural selection, environment.
Ref: Nei & Kumar, Molecular Evolution, Clocks and Purifying Selection.