A gene is a segment of DNA that is located on a chromosome and that codes for a hereditary character. For example, a gene in hair follicle cells determines a person's hair color The gene directs the making of the protein called melanin (a pigment) through an intermediate—the nucleic acid called ribonucleic acid, or RNA.
Figure 10-12 summarizes the flow of genetic information in a eukaryotic cell. During transcription, DNA acts as a template for the synthesis of RNA. In translation, RNA directs the assembly of proteins. Forming proteins based on information in DNA and carried out by RNA is called protein synthesis, or gene expression. This central concept can be symbolized as DNA —*- RNA protein. Proteins do important work in cells, such as protecting the body against infections and carrying oxygen in red blood cells.
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The best start to preventing hair loss is understanding the basics of hair what it is, how it grows, what system malfunctions can cause it to stop growing. And this ebook will cover the bases for you. Note that the contents here are not presented from a medical practitioner, and that any and all dietary and medical planning should be made under the guidance of your own medical and health practitioners. This content only presents overviews of hair loss prevention research for educational purposes and does not replace medical advice from a professional physician.