Friday, November 30, 2007

Design #25- Our Spiral Wonder!

You are unique! There is no one just like you, never has been, never will be! One evidence of this is in your DNA, the code that tells your cells how to build proteins. Read on to learn more about your uniqueness at the cellular level!

In all the world, there is no one like you, even physically! This is because no two people have the exact same DNA, with the exception of identical twins (but they still have difference, like fingerprints). Your body is made up of 60-100 trillion cells! Each cell has a nucleus and in that nucleus are 46 chromosomes. You inherited 23 of those chromosomes from your mother and 23 from your father. These 46 chromosomes house the 30,000 genes that make you what you are in most all ways except spiritually. One gene may determine your hair color, another your height. Another will make red blood cells, etc. Each gene is made of a chemical we call DNA. DNA is a double spiral blueprint for making proteins needed for your body. Every cell of your body has thousands of different proteins. (check here for a picture: http://www.csulb.edu/~cohlberg/storage/DNA.html

Proteins are made up of various combinations of 20 amino acids. In fact, there are so many different ways to put these 20 amino acids together, that your body produces some proteins that no other person has ever produced in the history of the world! As I said, you are unique! An average size protein molecule has 300 amino acids in a precise order. Think how many combinations of these 20 amino acids there would be to make a unique protein! No wonder you are unique!
Let’s examine how a hemoglobin protein (red part of your blood) is made: The DNA in the cell produces an RNA molecule modeling its unique pattern for making your red blood cell. The RNA takes this pattern to another part of the cell where protein synthesis takes place. It tells the cell which amino acids to use and in what order. As a result, another hemoglobin protein is made. How often does your body do this? Since your body must make at least 2 million red blood cells a second when you are active, it happens pretty often! And that doesn’t take into consideration all the other cells your body is making! Yet this complex yet orderly process of protein construction is done flawlessly billions of time a day in your body to keep you alive and well! As in all of God’s creation, we see order in complexity. Who could imagine that such a system evolved over time?! Obviously, it contains the fingerprints of our Master Designer!

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Posted by Jim at 03:03 PM

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