ment can be deduceu mom! 64) Insight into the genetic and metabolic potential of

Question

ment can be deduceu mom! 64) Insight into the genetic and metabolic potential of microbes in the environ a. Nucleic acid staining b. The redox tower c. Scanning tunneling microscopy d. Metagenomic analysis of environmental samples e. Environmental 16S rRNA gene analysis 65) According to the genealogical species concept, a prokaryotic species is: a. A cohesive group of strains that cluster together phylogenetically based on DNA sequence similarity b. An interbreeding population that is isolated from other interbreeding populations c. A group of related populations that possess similar ecological roles d. A group of related strains having similarly sized genomes e. It is not possible to define prokaryotic species 66) Which of the following is NOT a mechanism by which microbes are able to protect nitrogenase from O2 during N2 fixation? Forming heterocysts that do not perform oxygenic photosynthesis Rapid respiration to consume available oxygen Microbial synthesis of leghemoglobin to bind O2 and reduce free O2 levels Formation of physical barriers to O2 diffusion such as slime layers a. b. c. d. All of the above are performed by N2 fixing bacteria to protect nitrogenase

Explanation / Answer

Question 64)

The 5th option (e) is the right answer. 16s rRNA analysis reveals about the phylogeny and taxonomy of a sample in an environment. It provides identification and functional information of various bacteria species. Therefore, 16s rRNA analysis will use for genomic and metablic potential.

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