By performing the replica plating experiment, Lederberg supported the
Gene mutation theory
Natural selection theory
Lamarck theory
Darwinian theory
All the following are examples of homologous organs, except
$A$ : Archaeopteryx had free caudal vertebrae and toothed beak with teeth like reptiles.
$R$ : It is missing link between reptiles and bird
The most apparent change during the evolutionary history of Homo sapiens is traced in