Why did Carl Woese propose the domain Archaea? The domain Bacteria already had too many organisms in its classification. The methanogens were discovered to be a complex organism, between prokaryotic bacteria and eukaryotes, thus it needed its own domain. He discovered that methanogens were too large to be classified as bacteria, but too small to be classified as Eukarya. In analyzing the rRNA of methanogens, he discovered that it was completely distinct from any other bacterial rRNA that had been studied. The DNA of methanogens was discovered to use different nucleotides than those of organisms in Eukarya or Bacteria.

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Q: 2) You isolate a strain of bacteria and want to know if it might be a new species. What do you need…

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Q: What is the MAIN criterion used for the domain Bacteria, Archaea, and Eukarya, respectively?

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Q: Briefly discuss the Runyon classification of nontuberculous mycobacteria.

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A:

Q: Compare and contrast the structure and function of the following among bacteria and eukaryotes: a.…

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Q: I. During the past few decades, researchers have been using the 16S rRNA gene, which is a specific…

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Q: Look at the image above.  Based on their shape and how they are grouped,  what name would you give…

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Q: Was LUCA likely an RNA-based or DNA-based organism? Why?

A: Answer

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Q: What is the role of rRNA sequencing in the classification of eukaryotic microbes?

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Q: why are bacteria considered living organisms, while viruses are usually considered non living?

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Q: acteria and Eukarya?

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Q: How would you explain the fact that many proteins of Archaea resemble their counterparts in…

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Q: Compare the sizes and coding capacity of prokaryoticgenomes with those of eukaryotes. What other…

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Q: 17. The biological classification system categorizes organisms into which of the following domains?…

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Q: Please explain in simple worlds What is peptidoglycan that are found in gram cell walls?

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Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.