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Thursday, April 21, 2011

DNA (Deoxyribonucleic acid)

DNA (Deoxyribonucleic acid)
This indeed is the genetic material found in the body of a person who inherited from their parents. DNA was found in the cell nucleus in the structure of chromosomes and the mitochondria.

Functions as a blueprint that serves as a provider code for every human being as to hair color, eye shape, face shape, skin color, and others. Introduction to the structure of DNA was introduced by Francis Crick, scientist James Watson from UK and U.S. origin in 1953.

To make us understand what kind of DNA, you try to think of a sentence. The sentence is composed of several words. And each word is formed from some alphabet.

To say, the alphabet is a basic element of many languages. Similar principles can be applied to DNA. At the molecular level, "alphabet" key is provided by the DNA. Amazing is that the "alphabet" consists only of four letters were A, C, G, and T, which is a symbol of the chemical bases adenine, cytosine (cytosine), guanine, and thymine. This compound is formed bond exclusively, in which adenine is always paired with thymine and guanine always pairs with cytosine.

Forms of double helical DNA are tightly integrated. DNA consists of four base pairs A, C, G, and T is a nitrogen containing chemical components. Base sequence of bases in DNA molecules, it is that determines the genetic information contained therein. In short, this sequence determines almost everything about you, from hair color, skin color, to shape your nose.

Every human being has 23 pairs of chromosomes consisting of 22 pairs of somatic chromosomes and one pair of chromosomes determines gender. Someone with XX chromosomes determine the sex of a female and XY for the male gender. Chromosome is obtained from the parents, half from the mother and half from dad.

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