What is homolgy?
1 Answer
Homology is the existence of shared ancestry between a pair of structures, or genes in different taxa.
Explanation:
Biological structures or sequences in different taxa are homologous if they are derived from a common ancestor. It implies divergent evolution.
In developmental biology, organs that developed in the embryo in the same manner and from similar origins, such as from matching primordia in successive segments of the same animal are serially homologous.
Male and female reproductive organs are homologous if they develop from the same embryonic tissue, as do the ovaries and testicles of mammals including humans.
Homology remains controversial in animal behaviour, but there is suggestive evidence that , for example, dominance hierarchies are homologous across the primates.
