Homologous Genes Present Within Different Species are Known As

Question

Homologous genes present within different species are known as:
A) Paralogues
B) Orthologues
C) Heterologues
D) Similogues
E) None of these

Accepted Answer

Homologous genes present within different species are known as orthologues. Orthologous genes are those that have evolved from a common ancestral gene via speciation, and therefore they retain the same function in each species. Paralogues, on the other hand, are homologous genes within the same species that have arisen via gene duplication events and may have diverged in function. Heterologues and similogues are not commonly used terms in genetics.