 | DNA Part 1 | Clear Evidence for God in Creation |  |
DNA Part 2
Posted on: 08 April 2024 by Andrew Perry
Posted in: [Creation]
(A masterpiece of precision engineering)
In DNA Part 1, we looked at the way that DNA is coded, effectively using a 4 letter alphabet. We are now going to look at the way that it replicates itself.
Our bodies are constantly producing new cells, be it in the the process of growth, reproduction or replenishment of old cells. As was said in Part 1, every single cell of our bodies (with the exeception of a few cell types) contains a full copy of our genetic blueprint. When a new cell is created, the full DNA set (all 3.2 billion letters) has to be copied. How is this done with such accuracy?
A DNA molecule is shaped in the form of a double helix, or to put it simply, is like a pair of spiral staircases interwoven together. Each strand comprises a molecular backbone on to which the individual nucleotides (the building blocks of the genetic code) are attached. Each nucleotide on one strand forms a link with a nucleotide on the opposite strand. In Part 1, we mentioned the four nucleotides, namely adenine, cytosine, guanine and thymine. When links are made between the two DNA strands, adenine always pairs with thymine and vice versa; cytosine always pairs with guanine and vice versa.
When a DNA molecule replicates itself, the two strands start to unravel. As this happens, loose building block molecules that have been manufactured in the cell start to bond to each strand, with the nucleotide molecules being linked together using the pairing rules as described above. The nucleotides for each new strand are joined together with a new backbone and the strand wound up with the one from the original DNA molecule. When the process is complete, there are now two separate DNA molecules, each identical in every respect to the original. This process is repeated countless times with a precision matching that of any computer.
Surely such an engineering masterpiece could not have invented itself and has got to be the work of an intelligent designer.
| DNA Part 1 | Clear Evidence for God in Creation | |