Conserved gene order observed in the chromosomes of two distantly related organisms provides evidence of a(n) _____ relationship between genes.
A) orthologous
B) homologous
C) paralogous
D) analogous
E) genologous

Question

Quizplus · Accepted Answer

Orthologous genes have evolved from a common ancestor and are found in two different species. These genes are under selective pressure to maintain their function and thus their order within the genome remains conserved. Therefore, if the gene order is conserved between two distantly related organisms, it provides evidence of an orthologous relationship between their genes.

Conserved Gene Order Observed in the Chromosomes of Two Distantly