Page 132 - If Darwin Had Known about DNA

Harun Yahya

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while copying thousands of books. This level shows what an extraor-
dinary regulatory mechanism is compressed into a space too small to
be seen with the naked eye.

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* * Topoisomerase: enables DNA to be unraveled
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DNA strips are packed into tiny volumes many thousands of times
smaller than their length. In functioning in this small space, DNA may
encounter several problems because of its shape. For example, as the
DNA helix is opened up so that the information in it may be read, the
some parts the bottom become increasingly compacted and that pres-
sure needs to be released. This is just like pulling the fibers that make
up a thread, one by one, which causes parts of the thread to become
compacted. Immediately before the cell divides, an even larger prob-
lem may arise as the cell contains two copies of the DNA's 46 strips.
Each one needs to be unraveled at once, and then separated and dis-
patched to the new cell. 96
The DNA enzymes known as topoisomerase overcome this major
difficulty. One topoisomerase separates one strip of the DNA helix,
thus causing the DNA to unravel and stretch out, thus relaxing the
pressure from extreme compacting. This strip is subsequently recom-
bined, reassuming its double helix form. By the mercy of Allah, all
these systems carry out their functions to perfection, without us being
aware of them, preserving the genetic information concealed in the
DNA strips.
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T The Flawless Cooperation Between DNA and
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These processes are carried out an average of 20,000 times a day in
every one of the 100 trillion cells in the human body. Every enzyme
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knows where it must be and when, and at what stage it has to become
involved. Every enzyme has its own place in the progression. Each ad-