Question 68
(Multiple Choice)
The following questions refer to this phylogenetic tree,depicting the origins of life and of the three domains.Horizontal lines indicate instances of gene or genome transfer.
A possible phylogenetic tree for the three domains of life.
-Which portion of the above figure may ultimately be better depicted as a "ring"?
A)the bacterial lineage
B)the archaean lineage
C)the eukaryotic lineage
D)the trunk of the tree
E)the part corresponding to the first living cell on Earth
Answer