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Bases can be modified yes but limited yes 4. Examine the model of DNA to the right. Two bases have been extruded from base st
examine the model of DNA to the right. Two bases have been extruded from base stacking. The white line outlines the sugar – phosphate backbone along the chain. O is shown red, N blue, P yellow and C gray.
a) based on the figure, describe the "handedness" of the helix shown in region 1. What "type" of DNA is represented?
b) Based on the figure, describe the "handedness" of the helix shown in region 2. What "type" of DNA is represented?
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the normal form of DNA is right hand helix determined by the overall stabilty of the stacking interactions, forming the right hand helixes.the base extrusion occur in (B-Z junction)

a) the "handedness" of the helix shown in region 1 is the right handed (B-DNA)

b)the "handedness" of the helix shown in region 2 is left handed (Z DNA)

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