This article analyzes the biological essence of heredity, the mechanisms of transmission of genetic information from generation to generation, and its significance in the development of living organisms. During the study, the laws of heredity, the preservation and transmission of genetic information were examined based on scientific literature in genetics and molecular biology. In addition, the roles of genes, chromosomes, and DNA molecules in the formation of hereditary traits as well as the influence of environmental factors were analyzed. The results show that heredity plays a crucial role in preserving biological characteristics of living organisms, regulating developmental processes, and ensuring biological diversity. A deeper understanding of heredity contributes significantly to the advancement of biology, medicine, and genetics.

heredity, genetics, gene, chromosome, DNA, mutation, genotype, phenotype, biological evolution.

Gregor Mendel. Experiments on Plant Hybridization.

James Watson & Francis Crick. Molecular Structure of Nucleic Acids.

Biology textbooks of the Republic of Uzbekistan.

Collection of modern research articles on genetics.

Kurbonovich T. B. et al. USE OF ICT AND SOFTWARE IN TEACHING PRACTICAL MEDICAL EXERCISES //AMERICAN JOURNAL OF APPLIED MEDICAL SCIENCE. – 2025. – Т. 3. – №. 11. – С. 1-6.

Turdimuratov B. K., Ibragimova D. O., Kurbanov A. B. THE IMPORTANCE OF SUI INTELECT IN THE TREATMENT OF NEUROLOGICAL DISORDERS //ОСНОВЫ МЕДИЦИНЫ. – 2025. – Т. 1. – №. 7. – С. 344-347.

Kurbonovich T. B., Kholboyevich I. E. USE AND EFFECTIVENESS OF ELECTRONIC MEDICAL RECORD (EMR/EHR) SYSTEM IN MEDICINE //AMERICAN JOURNAL OF APPLIED MEDICAL SCIENCE. – 2025. – Т. 3. – №. 11. – С. 7-11.

Kurbonovich T. B. et al. DIGITAL TECHNOLOGIES IN MEDICINE. TELEMEDICINE //IMRAS. – 2025. – Т. 8. – №. 12. – С. 39-41.