Human Genetics

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The term "Genetics" is derived from the Greek word 'gen' which means *to become' or 'to grow into'. It is the science of inheritance which tries to explain how characters are transmitted through generations. Genetics is the scientific study of7 the laws of inheritance. Human genetics is defined as the study of how genetic inheritance takes place in the human species, or how inheritance of various characteristics from parents to children takes place.

Human DNA Structure
DNA Structure
 Scientists began to understand the mechanics of heredity and how evolution works in populations long before molecular biologists identified the genetic basis of evolutionary change.
 With the discovery of DNA (deoxyribonucleic acid) molecule in 1953 by Watson and Crick, scientists came to understand how genetic information is stored in the chromosomes of a cell. Genes, specific portions of DNA molecules, direct the synthesis of the protein molecules upon which all living organisms depend. Through the process of biological reproduction, each of us inherits a combination of genes from our biological parents that creates a unique new individual.           




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