Biology Dictionary

  • Gene

    Gene

    A segment of DNA that encodes the information necessary to produce a protein or RNA molecule, which determines a specific trait.

  • Gene amplification

    Gene amplification

    The process by which a specific gene or segment of DNA is replicated in large amounts, often used in laboratory settings to increase the availability of a gene of interest.

  • Gene conversion

    Gene conversion

    A process by which one allele or gene copy is converted into the sequence of another, often leading to genetic diversity.

  • Gene duplication

    Gene duplication

    The process by which a segment of DNA, including a gene, is duplicated, resulting in multiple copies of the gene within the genome.

  • Gene expression

    Gene expression

    The process by which information from a gene is used to synthesize functional products, typically proteins, that perform specific functions in the cell.

  • Gene family (also multigene family)

    Gene family (also multigene family)

    A group of related genes that share a common ancestor and typically perform similar or related functions.

  • Gallium (b)

    Gallium (b)

    A chemical element with the symbol Ga and atomic number 31, used in semiconductors and light-emitting diodes.

  • Gametangium (pl gametangia)

    Gametangium (pl gametangia)

    A reproductive organ in plants, algae, and fungi that produces gametes.

  • Gamete

    Gamete

    A reproductive cell (sperm or egg) that carries half the genetic material required for reproduction.

  • Gametic number (n)

    Gametic number (n)

    The number of chromosomes in a gamete, half of the total number of chromosomes in somatic cells.