Biological terms

Biological terms are explained as follows:

1, molecular biology: is a molecular level study of the phenomena of life, the nature of life, life activities and their laws of science.

2, medical molecular biology: is an important branch of molecular biology, but also an emerging interdisciplinary. It is from the molecular level to study the human body in the normal and disease state of life activities and their laws, from the molecular level to carry out the prevention of human diseases, diagnosis and treatment of a scientific research.

3, enzyme engineering: in the past, mainly through biochemical methods from a variety of materials to extract, prepare enzyme preparations. Now the main application of genetic engineering technology to produce enzyme preparations.

4, protein engineering: in the past, the main method is to use chemical methods of purified proteins for structural modification, the preparation of proteins with specific functions. Now the main application of genetic engineering technology, starting from the transformation of the structure of the target gene, in the recipient cells to express different structures of proteins.

5, microbial engineering: also known as fermentation engineering is the use of specific traits of microorganisms, so that microorganisms produce useful substances or directly used in industrialized production technology.

6. Methylation of DNA: In the primary structure of DNA, there are some bases that can be modified by adding a methyl group, called methylation of DNA.

7, CG islands: in the whole genome there are some clusters, stable non-methylated CG, this kind of CG is called CG islands.

8, messenger RNA: from the DNA molecule transcription of RNA molecules, there is a class of protein biosynthesis can be used as a template, known as messenger RNA.