Abstract

Genotype, phenotype, and environment are closely interrelated in the formation and development of an organism’s characteristics. Genotype carries genetic information and determines the potential expression of traits, while environmental conditions influence growth, development, and gene expression. Phenotype therefore results from the interaction between genotype and environment under specific conditions. This article clarifies the concepts of genotype, phenotype, and environment and analyzes their relationships through practical examples involving humans and plants. It highlights the respective roles of heredity and environmental factors in shaping biological characteristics and explaining phenotypic diversity in nature. The analysis also demonstrates the practical significance of this relationship for improving living conditions, healthcare, and agricultural production.

Keywords: Biological environment, genotype, heredity, phenotype, relationships.