Human Genetics is the study of inheritance as it involves in human beings. It encompasses a variety of overlapping fields including: classical genetics, cytogenetic, molecular genetics, biochemical genetics, genomics, population genetics, developmental genetics, genetic counselling and clinical genetics. Genes can be the usual factor of the qualities of most human-inherited traits. Information of human genetics can be useful as it can answer questions about human nature, understand the diseases and development of effective disease treatment, and understand the genetics of human life. This article explains only basic features of human genetics; for the genetics of disorders. Medical genetics is the main branch of medicine that includes the diagnosis and management of hereditary disorders. It varies from human genetics in that human genetics is a field of scientific research that may or may not apply to medicine, while medical genetics refers to the appeal of genetics to medical care. For example, research on the inheritance and causes of genetic disorders would be a review within both human genetics and medical genetics, while the diagnosis, counselling and management people with genetic disorders could be considered part of medical genetics. Population genetics is the main of evolutionary biology responsible for investigating processes that cause changes in allele and genotype frequencies in populations based upon Mendelian inheritance. The main four different forces can influence the frequencies: natural selection, mutation, gene flow (migration), and genetic drift. A population can be verifying as a group of interbreeding individuals and their offspring. For human genetics, the populations will be composed only of the human species. The Hardy-Weinberg principle is a widely used principle to explain allelic and genotype frequencies.
In the future, scientists and Doctors hope to use our genetic information to diagnose, treat, prevent and cure many illnesses. Genes are instructions, which convey your body how to make all the proteins it needs to survive and grow. DNA sequencing is mainly used to directly examine the genomic DNA sequence of a particular gene. It methylation analysis is used to diagnose fixed genetic disorders that are caused by disruptions of epigenetic mechanisms such as genomic imprinting and uniparental disomy. Genetic tests are used to diagnose determined disorders (for example, hemochromatosis and chromosome disorders such as Down syndrome and Turner syndrome). Genetics is also increasing the capacity to predict what disorders a person is likely to develop. They are established in almost every cell’s nucleus and are made from strands of DNA (deoxyribonucleic acid). Segments of DNA are called “genes” and the ingredients. Each and every gene adds a specific protein to the recipe. Proteins construct, regulate and maintain your body.