[Southack]

"The obvious answer is that the structures are not identical."

Regardless of the species which we are examining, the DNA structure will ALWAYS be the same double-helix configuration.

To discern which life form will be created by the double-helix structure in question, we examine the data contained in said DNA, stored via the sequence of A, C, G, and T bases.

[Nebullis]

DNA structure will ALWAYS be the same double-helix configuration

No. The right-handed double-stranded helix is the most common. There's a left-handed helix (called Z-DNA), fairly common. There are also triple helices (called H-DNA). And then there's large-scale (tertiary structure) folding which takes all sorts of shapes!

[Nebullis]

You have to remember that all these molecules are constantly wiggling and bouncing around. A pairing isn't solid, it's energetically favorable under certain conditions. But those conditions change and the structure changes.

[powderhorn]

To discern which life form will be created by the double-helix structure in question, we examine the data contained in said DNA, stored via the sequence of A, C, G, and T bases.

No. Data is something that you can print out on a page. Try putting the data for A, C, G and T in a computer and print out a life form, then you will have data that reproduces.

"Data" remains as an analogy for what is going on, not what is really going on.