Are you righthanded, lefthanded, or ambidextrous?

Answer 1

right handed

Answer 2

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I am a lefty. I found a website that offers an interesting addition to this aspect. I had never heard of this correlation before. Check it out and see what you think.

Is handedness genetic? The question is centuries old and has been the subject of hundreds of scientific papers. Now, the verdict is finally in, and the answer is yes. But there is an unexpected twist to the story: It seems that the same gene that creates lefties also determines which way hair whorls around.

Amar Klar, the head of developmental genetics at the National Cancer Institute campus in Frederick, Maryland, explained the link between handedness and the way hair spins on the scalp in the September 2003 issue of Genetics. It seems a single gene with two alleles controls both traits. The dominant allele dictates right-handedness—and a clockwise hair spiral. So having even a single copy yields a right-handed (or dexter) bias, as is the case for most people. Having only the recessive version, rather than causing left-handedness (or, as Klar would say, "non-right-handedness," to include the ambidextrous), does not direct any preference at all and results in a 50:50 mix of righties and nonrighties. In addition to generating southpaws half the time, two copies of the so-called "random-recessive" allele lead to a (separate) 50:50 chance of having their heads spin counterclockwise.

So if you've got a counterclockwise pattern on your dome (only appearing in 8 percent of the population), you're certain to have two copies of the random-recessive allele, but you have only a 50 percent chance of being a lefty. Likewise, people who are predisposed to be sinister (from Latin, meaning "on the left") are definitely carrying two recessives, but only half of these people will sport a counterclockwise whorl.

The bizarre connection with the direction of hair coiling is likely to be a result of events during embryogenesis. Both neural tissue and skin come from ectoderm, one of the first differentiated layers of cells that begin to appear during development. Other asymmetric anatomical features—such as placement of the heart and liver—are products of different layers, the mesoderm and endoderm. This fact might explain why the heart is invariably on the left, but neurologically derived hand preference and hair whorl are less constant.

There's more at the website (included below) for those who want an even more indepth explanation. Hope you find this interesting. Good luck.

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Answer 3

Righthanded.

Answer 4

Ambidextrous

Answer 5

Born a Lefty-Unique all the way...But...when I broke my left wrist I then had to learn 'righty' stuff-
So I guess now you can say I'm ambidextrous!!
Best of both worlds eh!!

Ps> I can only write clearly w/ my left hand

Answer 6

My right hand is certainly my strongest...and I wouldn't say I'm completely ambidextrous... but I do juggle, type, and play the guitar and piano - all require dexterity with both hands.

I cannot write with my left hand, though.

Answer 7

Right handed. But I do my check marks like a left handed person

Answer 8

I was ambidextrous as a kid, but now I am mostly right handed.

Answer 9

Right handed.☺

Answer 10

Right handed.

Answer 11

I started out left-handed but got that beat out of me. Now I'm mostly right-handed, though there are several things that I do left-handed.