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 ________.
A) homology
B) convergent evolution
C) common ancestry
D) retro-evolution by humans

Question

Quizplus · Accepted Answer

Convergent evolution is the process where organisms not closely related independently evolve similar traits as a result of having to adapt to similar environments or ecological niches. The similarity in rRNA sequences could be due to convergent evolution rather than direct common ancestry.

If, Someday, an Archaean Cell Is Discovered Whose RRNA Sequence