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This is Scientific American's 60-Second Science. I'm Chris Crockett. Got a minute?

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There are two kinds of people in the world.

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Those who can smell the roses and those who can't.

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Our ability to smell certain odors appears to be hardwired genetically.

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Researchers conducted blind smell tests.

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They then compared the results with participants' DNA.

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Detection of four odors—emanating from apples, blue cheese, malt and flowers could be linked to DNA variations.

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The studies are in the journal Current Biology.

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A rose-related odor, due to the compound beta-ionone, was described by people with one version of a specific gene as "floral" and "aromatic".

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But those with a different variation of the gene said things like "vinegar" and "sour".

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It seems our genes change how we experience the world.

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That's important to know if you're designing soap and want to add a dash of beta-ionone for a fresh floral scent, some consumers may find it disgusting.

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Remember that the next time someone finds your homemade apple pie revolting.

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The fault may lie not in your cooking but in their nose.

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Thanks for the minute, for Scientific American's 60-Second Science. I'm Chris Crockett.

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