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What does "it" in the phrase "expressing the genes for it" refer to? Does it refer back to "the coolest thing"?
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"What I think is the coolest thing about these arsenic-respiring microbes existing today in the ocean is that they are expressing the genes for it in an environment that is fairly low in arsenic," says Saunders.
"It opens up the boundaries for where we could look for organisms that are respiring arsenic, in other arsenic-poor environments."
Source: Science Alert https://www.sciencealert.com/evidence-of-arsenic-breathing-microbes-found-off-the-coast-of-mexico
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"What I think is the coolest thing about these arsenic-respiring microbes existing today in the ocean is that they are expressing the genes for it in an environment that is fairly low in arsenic," says Saunders.
"It opens up the boundaries for where we could look for organisms that are respiring arsenic, in other arsenic-poor environments."
Source: Science Alert https://www.sciencealert.com/evidence-of-arsenic-breathing-microbes-found-off-the-coast-of-mexico