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Hi I'm sunita calorie. Reading out an article on genetics presented by editor nick Bisceglia. She says half of your D. N. A. Is determined by your mother's side and half is by your father. So if you seem to look exactly like your mother, perhaps some D. N. A. That codes for your body and how your organs run was copied from your father's seems so close yet. So far this code taken from a high school student submission in a national essay contest represents just one of countless misconceptions many people have about the basic nature of heritage and how our bodies read the instructions stored in our genetic material. Although it is true that half of our genome is inherited from our mother and half from our father. It is certainly not the case that only some of our cells receive instructions from only some of our D. N. A. Rather every deployed nuclear hated cell in our body contains a full complement of chromosomes and our specific cellular phenotype are the result of complex patterns of gene expression and regulation. In fact it is to this dynamic regulation of gene expression that the organizational complexity is determined. For example, when the first draft of the human genome was published in 2003, Scientists were surprised to find the sequence analysis revealed only around 25,000 genes. Instead of the 50,200,000 genes. Originally hypothesized clues from studies examining the genomic structure of a variety of organisms suggests that much of human uniqueness lies not in our number of genes but instead in our regulatory control over when and where certain genes are expressed. Additional examination of different organisms has revealed that all genomes are more complex and dynamic than previously thought. Thus, the central dogma proposed by Francis crick as early at as 1958 that D. N. A. And codes RNA, which is translated into protein, is now considered overly simplistic. Today, scientists know that beyond the three types of RNE that make the central dogma possible. They are M. R N. E. R. Sorry, TR N. E and R. R. N. E. There are many additional varieties of functional RNA within cells. Many of it serve a number of known and unknown functions, including regulation of gene expression. Understanding how the structure of these and other nuclear assets bellies their function at both the microscopic and microscopic levels, and discovering how that understanding can be manipulated is the essence of the genetics and molecular biology. Converge detailed comparative analysis of different organisms genomes has also shed light on the genetics of evolutionary history. Using molecular approaches, information about mutation rates and other tools. Scientists continue to add more detail to follow genetic trees, which tell us about the relationships between the marvelous variety of organisms that have existed throughout the plant's history, examining how different process share populations through the culling or maintenance of deleterious or beneficial allies lies at the heart of the field of population genetics. Within a population, beneficial allies are typically maintained through positive natural selection. While allies that compromise fitness are often removed via negative selection. Some detrimental allies may remind, however, and the number of these allies are associated with disease. Many common human diseases, such as asthma, cardiovascular disease and various forms of cancer are complex. In other words, they arise from the interaction between multiple allies at different genetic allele, sorry, genetically okay with cues from the environment. Other diseases, which are significantly less prevalent, are inherited, for instance.