) How can NanoSIMS be used to determine which Roseobacters most strongly use DMSP as a sulfur source within a coastal marine environment? Explain the NanoSIMS methodology in your answer
What will be an ideal response?
Answer: NanoSIMS is a highly sensitive technique that can be combined with other methods to quantify the relative proportions of isotopic atoms such as 34S incorporated into various isolated organisms from 34S~DMSP exposure. The organisms containing the highest 34S are likely those that assimilate DMSP the most. In NanoSIMS, a high-energy ion beam is directed onto a sample to break apart most chemical bonds such that secondary ions released represent the composition of the sample. The various secondary ions are quantified with a mass spectrometer.
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What feature of a dinosaur determines whether it is a saurischian or an ornithischian dinosaur?
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Which of the following provides information about the nature and potential cause of a fungal infection the most quickly?
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