DNA Autocorrect

Autocorrect is great for our phones. But what about our DNA? This is Sandra Tsing Loh with the Loh Down on Science. DNA is made of building blocks called bases. These bases spell out the blueprints for our cells! Sometimes, mistakes are made, and the wrong base gets swapped in.

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Travelin’ Cows

Where did the mysterious, pre-Roman Etruscan people come from? Ask the cows! This is Sandra Tsing Loh with the Loh Down on Science. Thanks to a wealth of Etruscan artifacts, archaeologists know this: The civilization flourished in the first millennium BC in what is now Tuscany. But nobody ever figured

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Foreign Imports

Do you have imported genes? This is Sandra Tsing Loh with the Loh Down on Science, talking about DNA, not denim. Researchers from the University of Cambridge say humans certainly have genetic imports. The reason? “Horizontal gene transfer.” That’s when genes jump from one species to another. Like from viruses

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Four-Letter Words

How many four-letter words do you know? This is Sandra Tsing Loh with the Loh Down on Science. Let’s take “drat.” Rearrange the letters, and you can also make dart, and that’s about it. My point? There’s a limit to how many words you can make with those four letters.

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