Produced by Dada Life
‘Call My Name’ single available to pre-order: http://bit.ly/CallMyNameiTunes
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Download the Danger EP for free by clicking the link download link in the player. 4 tracks featuring collaborations with Jessie Ware, Diplo, Geeneus, Jacques Greene, Iggy Azalea, Zinc, Wiley.
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Bacteriofago!
(via scientificillustration)
Katy B my fav singer! U’re rocking :) @KatyB
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Trilobite! Ancestros de los Artropodos! :D
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The new single from Katy B. Available for pre-orders soon.
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H. pylori infection (WIP)
Finished sculpting the stomach wall- now on to fine tuning the composition and figuring out what to do with the mucin layer.
(via scientificillustration)
TOP: Anatomy of a Bacteriophage
MIDDLE: A Bacteriophage Attacking a Bacterium
BOTTOM: What a Phage Does to its Host
The cycle begins when the virus uses its tail fibers to attach itself to its victim. The details of what happens next vary, but the process is always the same: the phage’s genetic material, which is located in its head, enters the bacterium.
Here, we’ll use T4, a well-studied phage infecting the Escherica coli bacterium, as an example.
(1) T4 contracts its tail sheath which pushes a tube located within the tail through the membrane of the bacterial cell.
(2) The phage’s DNA is passed through the tube into the cell, where it takes control, brutally stops many of its vital functions and forces it to churn out new virus components – heads, tails, tail fibers – in production-line style.
(3). Finally, enzymes dissolve the wall of the bacterium from the inside and the newborn bacteriophages reach the exterior, ready to attack new victims.
(4) But these viruses proceed very selectively as they do so. Most of them attack only a subgroup of a single bacterial species. Generally, they don’t touch animal or human cells, which is why they are harmless to human beings.
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SCIENTIFIC ILLUSTRATION: Nucleosome
The Mediterranean Institute for Life Sciences
Split, CroatiaHigh 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.
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buu :P no queria foto via BeFunky http://www.befunky.com
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