Genes evolve due to natural selection and genetic drift of the alleles. When a gene is duplicated, the new copy can evolve a new function.

Dec 4, 2025 · gene, unit of hereditary information that occupies a fixed position (locus) on a chromosome. Genes achieve their effects by directing the synthesis of proteins. In eukaryotes (such …

Jul 9, 2025 · Genes are segments of DNA that give your cells instructions for specific traits or body functions. Different versions of the same gene are called alleles.

Aug 3, 2025 · To ask what genes are and where they’re found in the cell is to open a doorway into the most intricate and astonishing story ever told—the story of life. Genes are not merely molecules.

Genes control how our bodies look, grow and function. Humans have about 20,000 genes, and we inherit different versions of our genes from our biological parents. Genes also vary according to a …

Oct 27, 2025 · Genes are the basic units that determine the traits that we inherit from our parents. 1 They contain coded information found in nearly every cell of the human body. Our genes are made …

1 day ago · Genes are passed from parents to offspring and contain the information needed to specify physical and biological traits. Most genes code for specific proteins, or segments of proteins, which …

Each gene holds the blueprint for a particular task or characteristic, dictating everything from physical features to the unseen activities within our cells. The instructions provided by genes are the reason …

May 15, 2024 · Genes are specific sections of DNA that have instructions for making proteins. Proteins make up most of the parts of your body and make your body work the right way. You have two …

Jan 6, 2026 · Learn the difference between genes, alleles, and loci with simple explanations and examples. A beginner-friendly guide to genetics basics.