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SCIENTIFIC ILLUSTRATION:  Nucleosome
The Mediterranean Institute for Life Sciences
Split, Croatia

High resolution ray-traced model of a nucleosome, isolated on black.

A nucleosome is the basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound in sequence around four histone protein cores.  This structure is often compared to thread wrapped around a spool.

Nucleosomes form the fundamental repeating units of eukaryotic chromatin, which is used to pack the large eukaryotic genomes into the nucleus while still ensuring appropriate access to it.  In mammalian cells approximately 2 m of linear DNA have to be packed into a nucleus of roughly 10 µm diameter.  

Nucleosomes are folded through a series of successively higher order structures to eventually form a chromosome; this both compacts DNA and creates an added layer of regulatory control, which ensures correct gene expression.

(Nucleosome - Wikipedia)

bombing:

Smoking Kids 
by Frieke Janssens 

“A YouTube video of a chainsmoking Indonesian toddler inspired me to create this series, “Smoking Kids”. The video highlighted the cultural differences between the east and west, and questioned notions of smoking being a mainly adult activity. Adult smokers are the societal norm, so I wanted to isolate the viewer’s focus upon the issue of smoking itself. I felt that children smoking would have a surreal impact upon the viewer and compel them to truly see the acts of smoking rather than making assumptions about the person doing the act.

thedrunkenmoogle:

Glass Set Giveaway - Custom Etched Doctor Who Wine Glasses
Sponsored by Fanboy Glass

Whovians, get ready to get classy! Fanboy Glass has donated two of their wonderful blue TARDIS etched wine glasses for us to give away.  

To enter: Like or Reblog this post on Tumblr before 12:00 PM on Saturday (April 13, 2013). At noon we will draw a random name and announce the winner! 

Doctor Who TARDIS Custom Etched Wine Glass by Fanboy Glass - $14.99

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