Recall That Archaea and Bacteria Used to Be Grouped in the Same

Multiple Choice

Recall that Archaea and Bacteria used to be grouped in the same category. How were archaeons FIRST distinguished from other prokaryotes?

A) through differences in cell size and shape
B) through the fact that archaeons have linear and not circular chromosomes
C) through differences in ribosomal RNA sequences
D) through the lack of horizontal gene transfer in archaeons
E) through the observation that archaea cell size is independent of diffusion