If, someday, an archaean cell is discovered whose rRNA sequence is more similar to that of humans than the sequence of mouse rRNA is to that of humans, the best explanation for this apparent discrepancy would be .

Explanation:

Homoplasy:  the character that is present in the set of species but not present in their common ancestors is known as homoplasy. In case of an archaean cell, their rRNA sequence is more similar to that of humans than the sequence of mouse rRNA is to that of humans.

Example: the evolution of the eye which has originated independently in many unrelated species.

i think the answer is gold im not entirely sure