Can genetic mutations produce positive changes in living creatures?


Animation of the structure of a section of DNA...

Animation of the structure of a section of DNA. The bases lie horizontally between the two spiraling strands. (Photo credit: Wikipedia)

It is held by evolutionists that genetic mutations are an avenue of positive change in living organisms. For example, Richard Dawkins’ book, The Blind Watchmaker, seeks to establish a godless cosmos of chance in which the appearance of design in life has occurred by accident, by the incremental accumulation of positive changes in genes. His evidence relating to biochemical genetics, however, consists of theoretical models of little relevance to the real world.

Thus, the question remains: What do we actually see in the world around us when we use scientific tools of measurement and observation? Do we see this “blind watchmaker” at work in any real-life examples, or do we see the opposite?

The purpose of this article is to demonstrate the poverty of evolutionary theory to explain the facts in one well-researched area of biology–that is, the area of human genetics. It will show how the facts unearthed by this research show mutations to be, not a “blind watchmaker,” but more truthfully analogous to a “blind gunman.”

The human mutation problem is bad and getting worse.

Literally thousands of human diseases associated with genetic mutations have been catalogued in recent years, with more being described continually. A recent reference book of medical genetics listed some 4,500 different genetic diseases. Some of the inherited syndromes characterized clinically in the days before molecular genetic analysis (such as Marfan’s syndrome) are now being shown to be heterogeneous; that is, associated with many different mutations. This review will only scratch the surface of the many recent discoveries. Still, the examples cited will illustrate a compelling general principle which extends throughout this expanding field

What are mutations?
Mutations are defined as random changes in cellular DNA. They change the genetic code for amino acid sequence in proteins, thus introducing biochemical errors of varying degrees of severity. Mutations have been classified as deletions (loss of DNA bases), insertions (gain of DNA bases), and missense or nonsense (substitution of a DNA base).
If the mutations affect germ cells (female ova and male spermatozoa), they will be passed to all the cells of the offspring, and affect future generations. Such mutations are called “germline mutations,” and are the cause of inherited diseases.
Mutations also occur in other populations of body cells and will accumulate throughout a lifetime without being passed to the offspring. These are called “somatic mutations,” and are important in the genesis of cancers and other degenerative disease processes. Read on from source
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2 replies

  1. Hi, thanks for sharing.

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