Three the SSU rRNA sequences of 3 organisms have been compared. For organisms 1 and 2, two of the twelve nucleotides in the sequence are different. For organisms 1 and 3, six of the twelve nucleotides are different. Which organism has greater evolutionary distance from organism 1?

A. The evolutionary distance is the same.
B. Organism 2
C. Organism 3
D. Evolutionary distance cannot be predicted from this data.


Answer: C

Biology & Microbiology

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