2008年10月15日星期三

Unlock the secrets of DNA

When you find that the correlation between genes and DNA, people still want to know how the DNA of a thing, it is through the life of any specific measures of so much information to the new replacement?
First people wanting to know what is composed of DNA, human being dug this love always. Levin is A result of scientists through research, the discovery of DNA consists of four more small things, the four things always name nucleotide, like four brothers, they are surname, but the name but nucleotide, were different adenine (A) and guanine (G), cytosine (C) and thymine bases (T) and the four name written, but just remember to DNA consists of four nucleotide just get together, and their mutual connections without any rule, but later nucleotide, and their mutual combinations of the great mystery. Also change.
Now, people have basically learned how genetic. The 20th century biology research findings: the body is made up of cells, and the cytoplasm and cell nuclei by membranes, etc. Known in the nucleus has a substance called chromosomes, it mainly consists of some called deoxyribonucleic acid (DNA) substances.
Biological genetic material exists in all cells, the substance called the nucleic acid. The nucleic acid polymer. By the nucleotides Each nucleotide acid, DNA and the bases. There are five bases adenine, respectively (A) and guanine (G), cytosine (C), thiamine (T) and uracil (U). Each nucleotide bases containing the only one of the five.
A single nucleotide by a chain, two nucleotides chain according to certain sequence, then twisted MaHua "into", they constitute deoxyribonucleic acid (DNA) of the molecular structure. In the structure of every three bases can form a genetic code ", and a "DNA as the base of, so every DNA is a big genetic code hidden within the genetic information beyond number, DNA molecules that existed in the nucleus chromosome. They will be as cell division transfer the genetic code.
Genetic traits of code to pass by. People about 25,000 genes, and every gene is determined by the password. People in the same genes, and both have different parts. Different parts of the difference between decided that the diversity of people. Human DNA genetic code, 30 billion of about 25,000 genes

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