Why are SSU rRNA genes good choices for phylogenetic studies, and what are their limitations?
Answer to relevant QuestionsWhy is sequence alignment necessary prior to phylogenetic tree construction? What are the major differences between oxygenic and anoxygenic phototrophs? Why is NO3- a better electron acceptor for anaerobic respiration than is SO42-? What accessory pigments are present in phototrophs, and what are their functions? A fatty acid such as butyrate cannot be fermented in pure culture, although its anaerobic catabolism under other conditions occurs readily. How do these conditions differ, and why does the latter allow for butyrate ...
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