[puppypower (OP)]

With water, the DNA will be mistaken as... Chaotic.

This is not exactly true. Water contributes to the structure and the activity of the DNA. For example;

The DNA double helix can take up a number of conformations (for example, right handed A-DNA pitch 28.2 Å 11 bp, B-DNA pitch 34 Å 10 bp, C-DNA pitch 31Å 9.33 bp, D-DNA pitch 24.2 Å 8 bp and the left handed Z-DNA pitch 43Å 12 bp) with differing hydration. The predominant natural DNA, B-DNA, has a wide and deep major groove and a narrow and deep minor groove and requires the greatest hydration. Lowering the hydration (for example by adding ethanol) may cause transitions from B-DNA to A-DNA [2784] to Z-DNA.

If you were to dehydrate DNA, it would no longer work. If you were to replace the water with any other solvent, you would get chaos. You argument is true of all others solvents and DNA, but not water.

One reason the water is not include is, the life sciences are too dependent on the random assumption, whereas water eliminates randomness. The DNA does not randomly shift between A and B conformations. This is regulated by the water. You can control this by controlling the hydration.

Another reason is, science is not self sufficient when it comes to resources. Rather it is beholden to others, like business, for its resources. Big Money does not want anything to change, since change, even for the good, creates instability for the big players in the market place. The horse and buggy companies never wanted the automobile to succeed, even if better, because they could not evolve with the times. Instead new players would be expected to appear who were not bogged down by loyalty to a dinosaur tradition.

Including water with the DNA in textbooks would be good for the young people, who will start to see the DNA in new ways, from which there will be the innovation for the future.