Significance OF Junk DNA

The human body is formed by the assembly of tiny structures called cells and only visible under a microscope. In these cells, is a heart, the nucleus; in this nucleus are small sticks, chromosomes. Each chromosome consists of a filamentous molecule twisted on it and wrapped in a cocoon of protein. (Wahls, 103)

This molecule is called DNA. It concerns many researchers because they discovered that it was she who controls the functioning of cells but also that it is transmitted from cell to cell, from parent to child and from generation to generation. (Gregory, 24)

The code has been decrypted, analyzed and understood its role, its operation can even be copied today and we know make new DNA molecules. In a short time, researchers will make new creatures through the DNA. 97% of the DNA is useless! They call it junk DNA. The junk DNA would be the past history of extra-terrestrial our humanity. (Cavalier-Smith, 12)

The junk DNA would not just contain thousands of regulatory sequences to be responsible for the expression of genes. The development would not only be addressed by changes in gene sequences, but also depend on areas of non-coding DNA. (Elgar, 24)

A mathematical analysis of the human genome suggests that so-called "junk DNA" may be useful after all. The term "junk DNA" refers to parts of the genome that do not seem to have a specific role. In genetics, "junk DNA" or non-coding DNA describes DNA sequence components of an organism that do not encode protein sequences. Junk DNA is a term that was introduced in 1972 by Susumu Ohno, a provisional label the parts of a sequence a genome for which no discernible function identified. The term is now; however, a somewhat outdated concept, is mainly used in scientific publication and in a colloquial in scientific publications, and may have delayed research on the biological functions of non-coding DNA. (Biémont, 4)

Several lines of evidence indicate that many "junk DNA sequences are likely functional activity, but not identified, and other sequences may have had roles in the past. However, a large number of sequences in these genomes fall into any existing classification that is not "junk." For example, an experiment eliminated the 1% of the mouse genome with no detectable effect on phenotype.

The presence of patterns in the "junk DNA suggests these portions of the genome may play an important role.

Junk DNA is the one which is a frightening portion of our genetic code, has resulted in an indecipherable enigma to science for many years. DNA molecule being active in only five percent during the production of cellular proteins, geneticists rated the remaining 95 percent as the mere consequence of an evolutionary process, a load of useless information and inactive, that clung like a huge comet tail to the ridiculously small active portion of the DNA molecule. Even the same piece of code "junk" was used for years as a further argument against creationist philosophy, reasoning that a perfect God should not ...