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| one of the two crescent-shaped epidermal cells that border and open and close a plant stoma |
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| a complex tissue in the vascular system of higher plants that consists mainly of sieve tubes and elongated parenchyma cells usually with fibers and that functions in translocation and in support and storage |
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| synthesis of chemical compounds with the aid of radiant energy and especially light; especially : formation of carbohydrates from carbon dioxide and a source of hydrogen (as water) in the chlorophyll-containing tissues of plants exposed to light |
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| a single carpel or group of fused carpels usually differentiated into an ovary, style, and stigma |
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| the transfer of pollen from an anther to the stigma in angiosperms or from the microsporangium to the micropyle in gymnosperms |
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| a microsporophyll of a seed plant; specifically : the pollen-producing male organ of a flower that consists of an anther and a filament |
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| one of the minute openings in the epidermis of a plant organ (as a leaf) through which gaseous interchange takes place; also : the opening with its associated cellular structures |
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| the passage of watery vapor from a living body (as of a plant) through a membrane or pores |
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| of or relating to a channel for the conveyance of a body fluid (as blood of an animal or sap of a plant) or to a system of such channels; also : supplied with or made up of such channels and especially blood vessels |
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| a complex tissue in the vascular system of higher plants that consists of vessels, tracheids, or both usually together with wood fibers and parenchyma cells, functions chiefly in conduction of water and dissolved minerals but also in support and food storage, and typically constitutes the woody element (as of a plant stem) |
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| any of the alternative forms of a gene that may occur at a given locus |
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| any of the rod-shaped or threadlike DNA-containing structures of cellular organisms that are located in the nucleus of eukaryotes, are usually ring-shaped in prokaryotes (as bacteria), and contain all or most of the genes of the organism |
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| having two haploid sets of homologous chromosomes |
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| commanding, controlling, or prevailing over all others |
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| a mature male or female sex cell usually possessing a haploid chromosome set and capable of initiating formation of a new diploid individual by fusion with a gamete of the opposite sex |
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| a specific sequence of nucleotides in DNA or RNA that is located usually on a chromosome and that is the functional unit of inheritance controlling the transmission and expression of one or more traits by specifying the structure of a particular polypeptide and especially a protein or controlling the function of other genetic material |
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| all or part of the genetic constitution of an individual or group |
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| having the gametic number of chromosomes typically including one of each pair of homologous chromosomes |
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| a relatively stable state of equilibrium or a tendency toward such a state between the different but interdependent elements or groups of elements of an organism, population, or group |
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| an offspring of two animals or plants of different races, breeds, varieties, species, or genera |
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| a relatively permanent change in hereditary material involving either a physical change in chromosome relations or a biochemical change in the codons that make up genes; also : the process of producing a mutation |
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| failure of homologous chromosomes or sister chromatids to separate subsequent to metaphase in meiosis or mitosis so that one daughter cell has both and the other neither of the chromosomes |
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| physical trait you can see |
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| trait masked by the dominant trait |
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