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DNA
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I like it.
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| written by: gih at 2008-03-01 21:21:01 | reply to this
DNA helixes ALWAYS twist to the right, like a corkscrew. This has been flipped left to right.
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| written by: djo at 2008-03-02 04:08:35 | reply to this
No, they don't, but nice note.
In solution alternating purine-pyrimidine
residues assume the left-handed conformation only in the presence of high concentrations of positively charged ions (for example,
Na+) that shield the negatively charged phosphate groups. At lower salt concentrations, they form typical right-handed conformations. The physiological significance of Z DNA is uncertain and left-handed helices probably account at most for only a small proportion of a cell's DNA.
In solution alternating purine-pyrimidine
residues assume the left-handed conformation only in the presence of high concentrations of positively charged ions (for example,
Na+) that shield the negatively charged phosphate groups. At lower salt concentrations, they form typical right-handed conformations. The physiological significance of Z DNA is uncertain and left-handed helices probably account at most for only a small proportion of a cell's DNA.
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| written by: remer at 2008-03-02 15:16:23 | reply to this
Its surreal to get a close up look at what makes you you.
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| written by: BlayzeKohime at 2008-03-02 15:57:18 | reply to this
hmm...I thought so too remer, but didn't like to to say so! (corkscrews)..there are LH and RH ones as well. (I KNEW too helices was the plural of helix)!
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| written by: octavian at 2008-03-03 11:06:21 | reply to this
