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PRERNA FOR IAS
GENES & ENVIRONMENT
1. Genes
Genes are the basic units of heredity found on chromosomes and made up of DNA. They carry instructions that determine inherited traits such as eye color, blood type, hair texture, and certain physical characteristics. Genes control protein production, which regulates the structure and function of cells. Every individual inherits genes from both parents, creating a unique genetic combination. Different forms of the same gene are called alleles, which contribute to variation among individuals. Genes provide the biological blueprint for growth, development, and functioning of the body. However, genes alone do
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Explore how genes and environment interact to shape traits. Learn about DNA, gene expression, phenotype, and genotype in human development.
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