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Why is the structure of a DNA molecule sometimes referred to as having the shape of a spiral staircase?
Wiki User
∙ 14y ago
There seems to be no definite answer now.
Some say it is because the direction of chemical bonds.
Others say the spiral shape is the most economical way for information packaging.
Still others say DNA was most stable in spiral shape.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoEach strand of DNA in the double helix can serve as a pattern for duplicating the sequence of bases. This is critical when cells divide because each new cell needs to have an exact copy of the DNA present in the old cell.
Wiki User
∙ 14y agoIt's referred to as a spiral staircase because the shape is a double helix. have you ever seen those swirly decorations that are kind of like icicle ? well that's what DNA looks like. Hope this helped!
Wiki User
∙ 12y agoAlmost everybody who talks about DNA can tell you it is double stranded. And that it forms a twisted ladder or a double helix. But few people can tell us why.
DNA is a spiral for a number of reasons that have to do with what it is made of. Let's dig deeper, break open the DNA and figure out why it is put together in that shape.
DNA has three parts -- sugar, phosphate and bases that are linked together chemically in a particular way. Surprisingly, a big part of what makes DNA a spiral has to do with how well each part dissolves in water!
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gene
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double helix, twisted ladder, spiral staircase.
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The double helix.
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gene
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DNA
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