There are several reasons bacterial groupings based on morphology, physiology, and other metabolic characteristics may not be supported by molecular phylogenies produced from rRNA genes
Consider the statements below as possible reasons for this discrepancy.
Obtaining the traditional groupings of bacteria requires sequencing and comparing the entire
genome of each organism and cannot rely on single gene phylogenies generated from 16S
rRNA datasets.
A. true
B. false
B
You might also like to view...
Fructose and glucose are
a. isotopes. b. monosaccharides. c. disaccharides. d. six-carbon sugars. e. both monosaccharides and six-carbon sugars.
A diploid cell has how many versions of each gene?
a. 1 b. 2 c. 4 d. 8 e. 16
A ____________________ organism is one that carries a gene that has been transferred to it from
another species. Fill in the blank(s) with the appropriate word(s).
The earliest cells on Earth were primitive anaerobic bacteria. Why were they anaerobic?
a. Oxygen gas was present in the atmosphere. b. They had no photosynthetic pigments. c. There was no oxygen gas in the early Earth's atmosphere. d. Bacteria did not possess the complicated mechanisms required for other means of energy generation. e. They required the heat produced by Earth's molten rock.