How are genes and proteins similar to homologus structure when determining evolutionary relationships among species?

Homologous traits of organisms are due to sharing a common ancestor, and such traits often have similar embryological origins and development. This is contrasted with analogous traits: similarities between organisms that were not present in the last common ancestor of the taxa being considered but rather evolved separately.

A. nucleus B. lysome C.centriole D. cytoplasm E. cell wall