Why DNA is a double helix
Name: Newton Guest14
Why is DNA in a double-helix shape?
The why questions are always the worst. Why is anything the way it is?
The individual subunits (nucleotides and deoxyribose sugars) bond
to one another in certain ways only at certain points. As the chain
of these subunits grows, the bonding pattern becomes or leads to a
helical shape. The complementary strands are, in a sense, mirror images
of each other. Hope this helps.
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Update: June 2012