Biology Dictionary

  • Linkage

    Linkage

    The tendency of genes located close together on a chromosome to be inherited together.

  • Linkage disequilibrium

    Linkage disequilibrium

    The non-random association of alleles at different loci in a population, often due to physical proximity on a chromosome.

  • Linkage group

    Linkage group

    A set of genes located on the same chromosome that tend to be inherited together.

  • Linkage map

    Linkage map

    A genetic map showing the relative positions of genes on a chromosome based on recombination frequencies.

  • Linked genes

    Linked genes

    Genes located on the same chromosome that are often inherited together unless separated by recombination.

  • Linking number (Lk)

    Linking number (Lk)

    In DNA topology, the number of times one DNA strand winds around the other, indicating supercoiling.

  • Lipase

    Lipase

    An enzyme that catalyzes the breakdown of fats (lipids) into fatty acids and glycerol.

  • Lipid

    Lipid

    A diverse group of hydrophobic molecules (e.g., fats, oils, waxes) that store energy and form cell membranes.

  • Lichen

    Lichen

    A symbiotic association between a fungus and a photosynthetic partner (algae or cyanobacteria).

  • Lienitis

    Lienitis

    Inflammation of the spleen.