Page 57 - If Darwin Had Known about DNA
P. 57
Adnan Oktar
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bonds forming between the four opposed nucleotides are not as strong
as ester bonds, they can easily be separated with less energy by means
of such factors as pH variation (acid-base equilibrium), heat, and pres-
sure. Weak bonds play a very important role in the shaping of the large
molecules in an organism, and endow with elasticity the substance they
compose. However, no breakage in the bonds ever takes place. Thanks
to this distinguishing feature of hydrogen bonds, the information in the
DNA molecule can be used whenever required.
The significance of the elasticity in the bonds is that the vital func-
tion of protein production is made possible by DNA being copied when
cells divide, and that transmission is made possible by the elastic prop-
erty of the bonds between them. Since the two chains of the DNA mol-
ecule are attached to one another only by hydrogen bonds, they can
easily be unraveled and separated from one another. They can also,
when necessary, recombine and form a new helix structure. No break-
age or impairment ever takes place in the nucleotides that constitute
the steps of the DNA chain during detachment or separation. While the
hydrogen bonds in the center can easily separate from one another, no
breakage or stretching ever develops in the long chains at either side,
attached by means of covalent bonds.
The molecular biologist Michael Denton describes the perfection
in the biochemical structure of DNA:
The geometric perfection of the molecule is particularly evident in
the fact that the strength of each of the five hydrogen bonds –the two
between adenine and thymine and the three between guanine and cyto-
sine– is optimal because each of the hydrogen atoms points directly at its
acceptor atom, and the bond lengths are all at the energy maximum for
hydrogen bonds. This is most remarkable, for it confers great stability on
the molecule and makes for highly accurate base pairing during replica-
tion. 34