Wednesday, March 25, 2009

Tongue Rolling

There's much debate about whether or not tongue rolling is hereditary. Google it. You'll see. I was researching for a genetics lesson and never did find a definitive answer. Because I find useless, random bits of information delightful ...
One website claims it is a myth and says this: "Some people can roll their tongue into a tube, and some people can't. The proportion of people who can roll their tongue ranges from 65 to 81 percent, with a slightly higher proportion of tongue-rollers in females than in males. Tongue rolling is one of the human traits most commonly used to demonstrate simple Mendelian genetics. It is said to be a simple two-allele character, with the allele for rolling (usually given the symbol T or R) being dominant over the allele for non-rolling (t or r)."
Regardless, tongue rolling sure is cute ...
and apparently best done in the bathtub :)
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These photos were taken almost exactly one year apart.
If you click to enlarge, you can clearly see that Natalie
has (or has not) inherited the tongue rolling trait.

For the record (if there is one), although Chad and I can both roll our tongues, his is much more impressive than mine, and he gets all the credit for showing Natalie this little trick.

1 comment:

Chi-town momma said...

I love the side by side shot where you can really see just how much she has changed! Aghhh, I just want to smooch up on her...I hope she lets me! :)

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