Another scientist has given you a culture of an archaeon that is an extreme thermophile and is an obligate anaerobe. It does not produce methane and will not grow under high salt conditions or in very acidic conditions. What group does this organism belong to?

Question

Quizplus · Accepted Answer

The fact that the archaeon is an extreme thermophile and an obligate anaerobe, and does not produce methane, narrows it down to two groups: Crenarchaeota and Nanoarchaeota. However, the fact that it will not grow under high salt conditions or in very acidic conditions eliminates Nanoarchaeota, leaving Crenarchaeota as the most likely group for this organism.

Another Scientist Has Given You a Culture of an Archaeon