Darwin speculated that all forms of life are related. Some say that DNA has verified this speculation.
DNA is the most complex molecule in the Universe.
Here are some interesting facts about human DNA:
If the DNA from the nucleus of a human cell was "unwound" and stretched out it would be more
than 6 feet long.
The average person has 50 trillion cells in their body. The DNA from all these cells would only fill
two tablespoons but if you unwound it, it would reach to the moon and back five million times!
If you typed out the chromosome code within DNA from one human being, you would have
enough books to fill the Grand Canyon 40 times.
There are about 3 billion characters within a DNA molecule. If you could read the characters out
at a rate of one per second, day and night, it would take 96 years.
The probability of one DNA arranging itself by chance has been estimated at 1 in
ridiculous low probability. Mathematicians generally agree that any probability that is less than 1
in 1050 is considered to be an impossibility.
Did all this happen by chance?
Antony Flew (Professor of Philosophy, former atheist, author, and debater) said
"It now seems to me
that the findings of more than fifty years of DNA research have provided materials for a new and
enormously powerful argument to design."
On the issue of genetic similarity, it was estimated that mankind and chimps are 98.3% the same
and that our haemoglobin is about 98% the same. Well, a cloud, a water melon and a jellyfish are all
about 98% the same, that is 98% water, but that 2% makes a big difference. Genes from a person's
own Father and Mother are at a maximum only 93% similar. Many other animals have similar
haemoglobin to humans, including slime moulds ...
The theory of evolution depends on the concept of gene mutation. In other words, DNA replication is
not always consistent within an individual or from one generation to the next, mutation occurs. When
gene mutation is observed in the natural world it is almost always detrimental and involves the loss of
information or function.
Mutations can be introduced by radiation, chemical agents, or replication errors. Crucially however,
mutation does not involve an increase in information or function, which is required for evolution.
There are several different types of mutation (point, inversion, insertion, deletion, frame shift) but they
all result in a net loss of information and sometimes function as well. Lee Spetner (Biophysicist) said
"All point mutations that have been studied on the molecular level turn out to reduce the genetic
information and not to increase it."