In 1953, Watson and Crick double-stranded DNA molecule with very specific characteristics and have demonstrated that the model of the spiral structure. Genetic basis of micro-level events in the cell, genetic material is installed as nucleic acids based on the structure and properties. Two types of nucleic acids DNA and RNA, which has the same primary features. This is basically the four nucleotides and chemical unit is the building block molecules (abbreviated A, T, C, G) will follow a general sequence consisted of genes arranged in a consecutive manner.In nature, millions of species diversity, the diversity of human characters in the different combinations of these 4 types of nucleotide sequence with the genetic code occurs. Through the necessary order of genes on the DNA molecule, but a tool assembly of protein synthesis (ribosomes) forwards. RNA molecule of this tool. Expression occurs as a result of DNA to make RNA molecules.Here is everything that a mysterious message that carries the DNA molekülümüzün reserved. Today, he described the human genome and 23 chromosomes, which are spread in this article, ie, biological alınyazımız consists of about three billion letters.Genome, called gene consists of blocks of genetic information and the estimated number of genes in the human genome is about 80 thousand. In other words, all the phases of man from birth to death, and about three billion letters of genetic computer program, a huge reserve of 80 thousand genes. Based on computer Allegory Genetics, genes each in a separate software program (drawing, imaging or audio software, etc..) Get treated as. This software uses when it is needed time and space and which can be selected depending on the information. Picture of the history of mankind by 200 million years of continuous migrations, wars, türemelerle extinctions and re-blended the residue of kinship still remains hidden in our genes. Some of our consciousness is a part of creating a parasite that can be built upon the foundations to create the gene pool.DNA molecules in human cells, is not naked in no time. Always combined with proteins and these proteins (histone proteins), unsurlarıdır.Uzun continuous years of double-stranded DNA molecule of these proteins, only a very long lengths of the DNA molecule (in humans, this 2-meters), has undertaken the task of packing into the micron-sized cell is considered. It is packed structures called chromosomes. Later, it was understood they are functional proteins in the regulation of DNA information.Chromosomes, DNA and associated proteins, DNA, RNA was baskıladıkları ability to function as molds. That the gene is active or inactive, ie, specific nucleotides (adenine and thymine nucleotides in particular) that describes the protein molecules on the settlers. Genes in gene expression that do cover these proteins and thus prevents the gene product, the feature that unit çıkamamaktadır disclosure. A human liver cells and brain cell genome is the same. At the beginning of the development of ODD hücre'nin (zygote) to take on different functions under different programs multiply, bring out the different functions of proteins, genes, genomes, "on-off" process to accomplish with the cells is the result of textural specializations.However, the human genome programs are not produced in series between each of the genes a little-seen few changes. Even observable differences in behavior between brothers under the form and lies in this little-few changes. These changes, mutations and homologous chromosomes from the mother and father to track the changes that occur in the arms with (crossing-over) occurs. Determining the nucleotide at about the effects of changes in the genetic codes in that unit, sometimes immediately and sometimes after a few generations can be seen. Crossing-over tracks with the changes that occur with the recombinant (re-edited) consists of DNA molecules. Thus, diversity is revealed. As a result, a zygote, and caused the cells to carry all the genetic information in combination with genetic information that a large portion of development closer to the end of the shut down (been making business soon) see. This closure was done by histones advocated since 1950.
