Monday, February 8, 2010

Types of DNA


Plant DNA instructions for protein synthesis in the cell. Gateway coding DNA and the genes carried by the particles RNA. Leave RNA molecules of the nucleus (in animal cells) and the transfer of functional proteins. Although the DNA found on chromosomes, type B () is the most popular type of double helix structure, and various other forms of DNA.

Structure of DNA
1. DNA types differ in shape and structure of the helix. Parties Helix DNA doubles every expert. DNA consists of sugar-phosphate-on-bone, the main internal nitrogen. Bonds is hydrogen, nitrate, the basic structure of the double helix combines two complementary strands of DNA. The negative charge to the bone relationship, offering interaction with other molecules.
B-DNA
2. B-form DNA of chromosomes is often observed. B-DNA Helix right hand with 10 base pairs in turn. B-DNA for reproduction and use in trascríobh and transfer RNA molecules are used for the synthesis of proteins. This B-DNA can be filed only in the water, which means that the hydrogen bonds Out. In fact, this is the first step in the process of DNA replication in the cell.

DNA
3. DNA is also on the right side of the Helix. However, there are more base pairs per turn. A-11 DNA base pairs, in turn. Along with the more compact DNA is similar to B-DNA. This biologically active cellular structures in crystals and in laboratory tests.

Z-DNA
4. Z-DNA is a type of DNA helix cumbersome. It is also known and biologically active in ghlóthach repeating zigzag lines of base pairs. Z-DNA 12 base pairs, in turn, so that the genes of each spouse. Z-DNA plays an important role in trascríobh RNA, which is the process of protein synthesis from mRNA by creating a number of DNA. mRNA message RNA () is the transcription of genes containing the ribosome synthesis of protein molecules.

CDNA
5. CDNA (complementary DNA or clones) of DNA data type used to describe the library of genetic information. CDNA used in the test for pharmaceutical and research for the disease. CDNA additional issue, which moved to a laboratory for creating genes. Genetic engineering, and uses a library of DNA to create modifications of the genome information.

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