Tangled Tresses

You think you’re having a bad hair day? Ach du lieber! This is Sandra Tsing Loh with the Loh Down on Science. The Germans call it Struwwelpeter or “Shockhead Peter.” It affects people with dry, frizzy blonde hair. Those who have it comb and brush, spray and spritz, but nothing

Super-Sized DNA

How do YOU spell “alien D-N-A?” This is Sandra Tsing Loh with the Loh Down on Science. You probably know about DNA. It’s the genetic recipe book for all of life – at least, here on Earth! And it uses just four simple ingredients: the bases guanine, cytosine, adenine and

Wise Old Tortoise

The secret to a long, healthy life? Ask a tortoise! This is Sandra Tsing Loh with the Loh Down on Science. Lonesome George was a tortoise who passed away in twenty twelve — at a SPRY one hundred years old. Seriously, one hundred is young for a tortoise! Some have

Genome Clutter

Gaaah – this place is so cluttered! Do I NEED all this stuff? This is Sandra Tsing Loh with the Loh Down on Science, saying…maybe! Just like that overstuffed closet, your body is crammed with different proteins. Your genes contain blueprints for all of them. But some proteins have multiple,

Cali-chromosomes

Why do cats come in so many different colors? This is Sandra Tsing Loh with the Loh Down on Science Calico cats are mostly white with patches of orange and black fur. Though the pattern is always different, they almost all have something in common. Ninety-nine percent of calico cats

Mind Over Molecules

Which is more powerful? Nature or nurture? This is Sandra Tsing Loh with the Loh Down on Science, saying – what about “mind control?” Some aspects of our physiology and personality are encoded by our genes. And we know that environmental factors are also important. Bradley Turnwald and colleagues at

Three Mom Mice

Is it the end of men? This is Sandra Tsing Loh with the Loh Down on Science. Men. Who needs ‘em! Not some female sharks, spiders, and komodo dragons. They can create babies on their own. Mammals are different. For us, certain genes important for embryonic development are turned OFF

Sweet Deal

Getting a twenty-one isn’t just a win at blackjack! This is Sandra Tsing Loh with the Loh Down on Science. In the endless pursuit of a healthy lifestyle, research is turning to our genetics. Specifically, the work of Tim Frayling and researchers at the University of Exeter. They’re leading an

The Secret Life of Cells

Cells can have nuclei, mitochondria and… family secrets? This is Sandra Tsing Loh with the Loh Down on Science. We each have a family tree of ancestors. Turns out, our cells also have a family tree! Doctors can use them to isolate diseased cells. But no one has created a

Cotton Cuisine

How’d you like to wear your shirt —and eat it, too? This is Sandra Tsing Loh with the Loh with the Loh Down on Science. When fibers are plucked from a cotton plant, what’s left behind is pile of seeds practically bursting with protein. Unfortunately they’re also bursting with a