- المجال: Agriculture
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Established in October 1945 with the objective of eliminating hunger and improving nutrition and standards of living by increasing agricultural productivity, FAO coordinates the efforts of governments and technical agencies in programs for developing agriculture, forestry, fisheries, and land and ...
1. The way the flowers are arranged on the stalk of a plant.
2. The flowers of a plant collectively.
3. The flowering or blooming process.
Industry:Biotechnology
A plant with two cotyledons, or seed leaves. One of the two classes of plants in the Angiosperms (the other class is the monocotyledons). Colloquially called a dicot. Examples include many crop plants (potato, pea, beans), ornamentals (rose, ivy) and timber trees (oak, beech, lime).
Industry:Biotechnology
The special cell division process by which the chromosome number of a reproductive cell becomes reduced to half (n) the diploid (2n) or somatic number. Two consecutive divisions occur. In the first division, homologous chromosomes became paired and may exchange genetic material (via crossing over) before moving away from each other into separate daughter nuclei (reduction division). These new nuclei divide by mitosis to produce four haploid nuclei. Meiosis results in the formation of gametes in animals or of spores in plants. It is an important source of variability through recombination.
Industry:Biotechnology
(symbol: r) Obsolete unit of ionizing radiation. The SI unit is the sievert (symbol: Sv)
Industry:Biotechnology
In an organism or a single cell, the biochemical process by which nutritive material is built up into living matter, or aids in building living matter, or by which complex substances and food are broken down into simple substances.
Industry:Biotechnology
A delicate cytoplasmic double membrane found on the outside of the protoplast, adjacent to the cell wall.
Industry:Biotechnology
A whiplike organelle of locomotion in certain cells; locomotor structures in flagellate protozoa.
Industry:Biotechnology
A white amorphous substance which, when combined with acid and sugar, yields a jelly substance cementing cells together (the middle lamella).
Industry:Biotechnology
(SI symbol: lx) The unit of measurement for illuminance (i.e., the amount of illumination) impinging upon a surface. 1 lx is the illuminance impinging upon a surface of 1 m<sup>2</sup>, each point of which is at a distance of 1 m away from a uniform point source of light of 1 cd (candela). It supersedes the foot-candle.
Industry:Biotechnology
A length of DNA consisting of 10<sup>6</sup> base pairs (if double-stranded) or 10<sup>6</sup> bases (if single-stranded). 1 Mb = 10<sup>3</sup> kb = 10<sup>6</sup> bp.
Industry:Biotechnology
