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Tag Archives: snails

Genes, left and right

23 Tuesday Dec 2008

Posted by nutmeg66 in genetics

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genetics, snails

http://www.berkeley.edu/news/media/releases/2008/12/22_asymmetry.shtml

Snails and humans use same genes to tell right from left

Photobucket

A yellow and brown side-by-side pair can be seen at the right; the one closer to the
middle of the photo is dextral, and the other is sinistral. (Nipam Patel/UC Berkeley)

“Biologists have tracked down genes that control the handedness of snail shells, and they turn out to be similar to the genes used by humans to set up the left and right sides of the body.

“The finding … indicates that the same genes have been responsible for establishing the left-right asymmetry of animals for 500-650 million years, originating in the last common ancestor of all animals with bilateral body organization, creatures that include everything from worms to humans.”

 

Just dropping in to see what’s going on

03 Friday Oct 2008

Posted by nutmeg66 in just talking

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Tags

blog, snails

I’ve just visited SU and realised I haven’t posted anything for ages! I’m also a bit confused by all the changes to the layout, friends and things since I was last here.

Still can’t find anything to post so, to keep things ticking over, here’s a snail from my garden, enjoying the soggy summer we’ve just had:

Snail by nutmeg66

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