sterile hybrid

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• Hybrid (biology) — In biology and specifically, genetics, the term hybrid has several meanings, all referring to the offspring of sexual reproduction.[1] In general usage, hybrid is synonymous with heterozygous: any offspring resulting from the mating of two… …   Wikipedia

• sterile — adjective Etymology: Middle English steryle, from Latin sterilis; akin to Gothic stairo barren animal, Sanskrit starī sterile cow Date: 15th century 1. a. failing to bear or incapable of producing fruit or spores b. failing to produce or… …   New Collegiate Dictionary

• sterile — Relating to or characterized by sterility. [L. sterilis, barren] * * * ster·ile ster əl, chiefly Brit .īl adj 1) failing to produce or incapable of producing offspring <a sterile hybrid> compare INFERTILE 2) free from living organisms and… …   Medical dictionary

• Sterile male plant — are plants which are incapable of producing pollen. This is sometimes attributed to mutations in the mitochondrial DNA which affects the Tapetum cells in anthers which are responsible for nursing developing pollen. The mutations causes the break… …   Wikipedia

• hybrid — /huy brid/, n. 1. the offspring of two animals or plants of different breeds, varieties, species, or genera, esp. as produced through human manipulation for specific genetic characteristics. 2. a person or group of persons produced by the… …   Universalium

• Hybrid — The word hybrid has a number of different biomedical meanings. In transmission genetics, a hybrid is the result of a cross between two genetically dissimilar parents. The offspring of unlike parents. If the parents are sufficiently dissimilar,… …   Medical dictionary

• Hybrid Iguana — The Hybrid Iguana is a first generation hybrid, which is the result of interspecies breeding between a male Marine Iguana and a female Land Iguana on South Plaza Island in the Galápagos Islands where the territories of the two species overlap.… …   Wikipedia

• Hybrid seed — In agriculture and gardening, hybrid seed is seed produced by artificially cross pollinated plants. Hybrids are bred to improve the characteristics of the resulting plants, such as better yield, greater uniformity, improved color, disease… …   Wikipedia

• hybrid — n. the offspring of a cross between two genetically unlike individuals. A hybrid, whose parents are usually of different species or varieties, is often sterile …   The new mediacal dictionary

• hybrid dysgenesis — Genetic phenomenon, in which two strains of organism produce offspring at anomalously low rates. Example: the P M system of Drosophila, in which P strain males (containing multiple P elements) mated to M strain females produce sterile hybrids …   Dictionary of molecular biology

• Drosophila hybrid sterility — The most common species definition in use today is the biological species concept of Ernst Mayr, which defines a species as a group of organisms which can mate and produce viable offspring. Drosophila are one of the most commonly used organisms… …   Wikipedia