Which of the following statements is correct?

Question

Quizplus · Accepted Answer

Orthologs are genes in different species that evolved from a common ancestral gene by speciation. Homologs are genes that share a common ancestry, which includes both orthologs and paralogs (genes that evolved by gene duplication within a species). Therefore, all orthologs are homologs, but not all homologs are orthologs. Similarly, not all paralogs are orthologs because paralogs evolved by duplication events within a species, not by speciation.

Which of the Following Statements Is Correct