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Orbit GC Nucleotide Assembly

This image shows guanine & cytosine paired together with cytosine facing "upwards" & guanine facing "downwards". The double bonds that are visible only on thecytosine side but are also present on the guanine side but cannot be readily seen.

This is an important feature of the Indigo Instruments 12 base pair DNA model when used as part of a lab instruction exercise. The 3 hydrogen bonds consist of a 5mm long "wobbly" bond with a white insert. Although linear hydrogen atoms are available we believe this representation along with the double bonds shown in the base pairs better illustrates the importance of the overall resonance structure.

Click on the Details tab below to see more assembly images.

SKU: 68795WS
Orbit 12 base pair DNA model, needs assembly

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Current Reviews: 3

This image shows a completed base pairs with guanosine to the left and cytidine to the right. Note that the "X-pegs" that illustrate the double bonds are on top on one side and on the bottom on the other. This ensures that the strands are built anti-parallel to form the major & minor grooves.

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24 Base Double Height Version, AT, CG, GC, TA,
68218CAtom, Orbit, O, red, 1 prong55
68230CAtom, Orbit, O, 110 degree, red92
68235CAtom, Orbit, C, planar:108-120-132, black25
68236CAtom, Orbit, C, planar: 108-126-126, black13
68237CAtom, Orbit, N, planar: 108-126-126, blue25
68241CAtom, Orbit, C, planar: 120-120-120, black73
68242CAtom, Orbit, N, planar: 120-120-120, blue66
68244CAtom, Orbit, C, tetrahedral, black128
68247CAtom, Orbit, P, tetrahedral, purple24
68267CAtom, Orbit, double/triple bond peg/insert211
68186-20Wobbly bond, 20mm, each456
68186-25Wobbly bond, 25mm, each98
68186-50Wobbly bond, 50mm, each30
68366Orbit bonds, opaque, 20mm, 15/bundle7
67288CBond, Minit, white, 210mm5

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