/hoh'meuh zuy"goht, -zig"oht, hom'euh-/, n. Biol.
an organism with identical pairs of genes with respect to any given pair of hereditary characters, and therefore breeding true for that character.
[1900-05; HOMO- + ZYGOTE]

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      an organism with identical pairs of genes (or alleles) for a specific trait. If both of the two gametes (sex cells) that fuse during fertilization carry the same form of the gene for a specific trait, the organism is said to be homozygous for that trait. In a heterozygous organism, or heterozygote, the genes for a specific trait are different.

      Because genes may be either dominant or recessive, the genetic composition (genotype) of an organism cannot always be determined by the physical appearance (phenotype).

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Universalium. 2010.

Look at other dictionaries:

  • Homozygote — se dit d un gène qui, chez un individu, sera représenté par deux allèles (des variantes de ce gène) identiques. Par extension, on parlera d individu homozygote pour ce gène. En génétique, on parlera de souche pure pour une population se… …   Wikipédia en Français

  • homozygote — [ omozigɔt ] adj. et n. • 1903; de homo et zygote ♦ Biol. Se dit d une cellule, d un individu, qui possède deux allèles identiques situés au même emplacement sur les deux chromosomes d une même paire. N. Un homozygote (un individu pur). ⊗ CONTR.… …   Encyclopédie Universelle

  • homozygote — homozygote. См. гомозигота. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • homozygote — [hō΄mōzī′gōt΄, hō′məzī′gōt΄, häm′ōzī′gōt΄, häm΄əzī′gōt΄] n. [ HOMO + ZYGOTE] a plant or animal having two identical alleles at a single locus on a chromosome, and hence breeding true for the particular character involved; purebred homozygous… …   English World dictionary

  • Homozygote — A person who has two identical forms of a particular gene, one inherited from each parent. For example, a girl who is a homozygote for cystic fibrosis (CF) received the CF gene from both of her parents and therefore has CF. The opposite of a… …   Medical dictionary

  • homozygote —   n. organism or cell having the same alleles for a particular inherited characteristic.    ♦ homozygosis, n. condition of being a homozygote.    ♦ homozygotic,   a …   Dictionary of difficult words

  • homozygote — homozigota statusas T sritis augalininkystė apibrėžtis Ląstelė arba organizmas, turintys vienodus vienos alelių poros genus. atitikmenys: angl. homozygote rus. гомозигота …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • homozygote — noun Etymology: International Scientific Vocabulary Date: 1902 a homozygous individual …   New Collegiate Dictionary

  • homozygote — n. [Gr. homos, same; zygon, yoke] One who exhibits homozygosity; see heterozygote …   Dictionary of invertebrate zoology

  • homozygote — Nucleus, cell or organism with identical alleles of one or more specific genes …   Dictionary of molecular biology

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