The similarity in different genotypes in organisms indicates which of the following?

Homologous organs are those which have:

Recapitulation theory $(Biogenetic \text{ law})$ explains "Ontogeny repeats Phylogeny". It was given by

Give differences between homologous structures and analogous structures.

$A$: Similarities in proteins and genes performing a given function among diverse organisms give clues to common ancestry.
$R$: All groups of vertebrates arise from a common ancestor with great adaptation capability.

Select the correct statement.