Sunday, September 30, 2012

#21 DNA

Every living thing has DNA in its cells. We can’t talk about life without talking about DNA, the “blueprint” of life. Differences in the DNA will determine what type of plant or animal emerges. I’m sure you know a little about it already.

You have about 100 trillion cells in your body and all of them contain DNA except red blood cells. If you laid the DNA from one cell end to end it would stretch about six feet, but would only be about 50 trillionths of an inch wide. Laying out all your DNA, it would reach to the sun and back about 600 times. (6’ x 100 trillion divided by a round trip of 184 million miles). Put another way, it would span the diameter of the Solar System.

If you started typing 60 words per minute for 8 hours a day, it would take you around 50 years to type out the DNA sequence in one of your cells.

DNA is so amazing, there are probably enough facts about DNA alone that I could put together 101 Proofs for God just using DNA.

DNA does almost everything. It sets the patterns for all your proteins. Patterns in your DNA are used for producing the RNA which is then used by ribosomes in your bone marrow to produce hemoglobin. Every second the ribosomes make 100 trillion molecules of hemoglobin. (Can you even believe that?) Hemoglobin carries oxygen to your brain, muscles, and all your cells. Without it, you die.

Humans have 46 chromosomes of genetic material in their cells consisting of 23 pairs. Sections of genetic code on the chromosomes are called genes. We have an estimated 20,000 to 25,000 genes. Each gene is made up of segments of DNA that are about 10,000 to 15,000 base pairs. A “base pair” is like one of the rungs on the “ladder” in the DNA. The genes are the areas of the chromosomes that are passed from parent to child and contain the hereditary information which gives you characteristics like your parents.

The human genome (the exact DNA sequence in a human) consists of about 3 billion base pairs and almost every cell of your body has a complete set. The amount of data in one cell would fill 1,000 volumes of an encyclopedia.

Every time a cell divides the DNA goes through self-replication using cellular protein processes that act like machinery. It makes a complete duplicate of itself, accurately copying the 3 billion base pair genome. Astoundingly impressive! Astronomically impossible to happen accidentally. Your body produces about one billion new cells every hour.

This duplication has just one exception. That is when making a sperm or egg cell. That process requires ending up with only half the DNA makeup. A man’s body makes 1,500 sperm cells per second.

But DNA is not only reproducing itself fantastically fast, it is also helping make every type of protein that is necessary for your life. This is serious multi-tasking.

Watch this 7 minute YouTube video to see an animation of several of the functions of DNA. Astounding mechanical and bio-chemical complexity is taking place. Here is a quote from the video: The DNA is an “assembly line of amazing miniature bio-chemical machines that pull apart the double helix of DNA and crank out a copy of each strand.”

Here is another video (2:36 minutes) that might help in understanding the very complex replicating process:

Certainly lots more will be discovered about DNA and the human genome, but from what we already know, it is mind boggling in its complexity. There is no entity in the known universe that stores AND processes more information MORE efficiently than the DNA molecule. That some scientists continually exclude any possibility of an invisible hand of God that started the DNA processes is unfathonable. To insist that science must remain godless in the face of all evidence to the contrary is absurd.

Science proves there must be God.

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