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According to the National Human Genome Research Institute (NHGRI), a genetic disorder ‘is a disease caused in whole or in part by a change in the DNA sequence away from the normal sequence’. Genes are made of DNA (deoxyribonucleic acid), which contains instructions for cell functioning. DNA (deoxyribonucleic acid) is the carrier of genetic information present in all human cells. An individual contains 20,000 to 25,000 genes within the nucleus of each somatic cell that make up connective tissue, blood, skin, bones, etc.

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Genetic and Heritable Oral Disorders

  • 章节

  • 发表日期：

    2026年

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  • S. R. Prabhu

摘要

According to the National Human Genome Research Institute (NHGRI), a genetic disorder ‘is a disease caused in whole or in part by a change in the DNA sequence away from the normal sequence’. Genes are made of DNA (deoxyribonucleic acid), which contains instructions for cell functioning. DNA (deoxyribonucleic acid) is the carrier of genetic information present in all human cells. An individual contains 20,000 to 25,000 genes within the nucleus of each somatic cell that make up connective tissue, blood, skin, bones, etc.