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haploid tissue

См. также в других словарях:

  • Plant tissue culture — is a practice used to propagate plants under sterile conditions, often to produce clones of a plant. Different techniques in plant tissue culture may offer certain advantages over traditional methods of propagation, including:* The production of… …   Wikipedia

  • reproduction — /ree preuh duk sheuhn/, n. 1. the act or process of reproducing. 2. the state of being reproduced. 3. something made by reproducing an original; copy; duplicate: a photographic reproduction; a reproduction of a Roman vase. 4. Biol. the natural… …   Universalium

  • Seed — A seed Audio IPA|en us seed.ogg|/ˈsiːd/ (in some plants, referred to as a kernel) is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food. It is the product of the ripened ovule of gymnosperm and… …   Wikipedia

  • calyptra — noun Etymology: New Latin, from Greek kalyptra veil, from kalyptein to cover more at hell Date: circa 1753 a hoodlike structure in a plant; especially haploid tissue forming a membranous hood over the capsule in a moss …   New Collegiate Dictionary

  • gametophyte —   Haploid structure or tissue; that component of the life cycle which produces gametes …   Expanded glossary of Cycad terms

  • plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

  • plant development — Introduction       a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …   Universalium

  • fungus — fungic /fun jik/, adj. funguslike, adj. /fung geuhs/, n., pl. fungi /fun juy, fung guy/, funguses, adj. n. 1. any of a diverse group of eukaryotic single celled or multinucleate organisms that live by decomposing and absorbing the organic… …   Universalium

  • reproductive system, animal — Introduction       any of the organ systems by which animals reproduce.       The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …   Universalium

  • biological development — Introduction       the progressive changes in size, shape, and function during the life of an organism by which its genetic potentials (genotype) are translated into functioning mature systems (phenotype). Most modern philosophical outlooks would …   Universalium

  • reproductive system, plant — Introduction       any of the systems, sexual or asexual, by which plants reproduce. In plants, as in animals, the end result of reproduction is the continuation of a given species, and the ability to reproduce is, therefore, rather conservative …   Universalium

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