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  1. Genetics | History, Biology, Timeline, & Facts | Britannica

    5 days ago · Genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, …

  2. genetics summary | Britannica

    Genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, medicine, and …

  3. genetics - Kids | Britannica Kids | Homework Help

    Genetics is the study of heredity, or how certain features pass from parents to their offspring, or young. Every kind of plant and animal produces young of its own species, or type.

  4. Heredity | Definition & Facts | Britannica

    Nov 6, 2025 · Discoveries into the nature of genes have shown that genes are important determinants of all aspects of an organism’s makeup. For this reason, most areas of biological …

  5. Gene | Definition, Structure, Expression, & Facts | Britannica

    2 days ago · 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 …

  6. Human genetics | Description, Chromosomes, & Inheritance

    Human genetics, study of the inheritance of characteristics by children from parents. Human inheritance does not differ in any fundamental way from inheritance in other organisms. An …

  7. Genetics - DNA, Genetic Code, Mutations | Britannica

    Oct 21, 2025 · Today a prime reason for performing classical genetics is for gene discovery—the finding and assembling of a set of genes that affects a biological property of interest.

  8. Behavior genetics | Definition, History, & Methods | Britannica

    Behavior genetics, the study of the influence of an organism’s genetic composition on its behavior and the interaction of heredity and environment insofar as they affect behavior.

  9. DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...

    Nov 28, 2025 · Deoxyribonucleic acid (DNA) is an organic chemical that contains genetic information and instructions for protein synthesis. It is found in most cells of every organism.

  10. Recessiveness | Definition & Examples | Britannica

    A number of genetic diseases in humans are autosomal recessive, meaning that two mutant recessive alleles are required to produce symptoms of disease. An example is sickle cell …