- 行业: Agriculture
- Number of terms: 87409
- Number of blossaries: 0
- Company Profile:
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 ...
The formation of new species by populations that inhabit the same or overlapping geographic regions.
Industry:Biotechnology
The formation of nodules by symbiotic bacteria on the roots of plants.
Industry:Biotechnology
The fraction of a cell population that takes up foreign DNA; expressed as the number of transformed cells divided by the total number of cells in a population.
Industry:Biotechnology
The frequencies of genotypes at a locus resulting from random mating at that locus; for two alleles, <i>A</i><sub>1</sub> and <i>A</i><sub>2</sub>, with respective frequencies <i>p</i> and <i>q</i>, the Hardy-Weinberg equilibrium frequencies are <i>p</i><sup>2</sup> <i>A</i><sub>1</sub><i>A</i><sub>1</sub>, 2<i>pq</i> <i>A</i><sub>1</sub><i>A</i><sub>2</sub>, <i>q</i><sup>2</sup> <i>A</i><sub>2</sub><i>A</i><sub>2</sub>. Despite the simplifying assumptions required to predict these frequencies, most loci in most populations are in Hardy-Weinberg equilibrium. Thus the Hardy-Weinberg law, which predicts these frequencies, is one of the great unifying themes of biology.
Industry:Biotechnology
The fusion of nuclei or nuclear material that occurs during sexual reproduction.
Industry:Biotechnology
The fusion of reproductive cells from closely related parents, i.e., inbreeding. <i>cf</i> exogamy.
Industry:Biotechnology
The fusion of reproductive cells from distantly related or unrelated organisms, i.e., outbreeding. <i>cf</i> endogamy.
Industry:Biotechnology
The fusion of two or more dissimilar cells leading to the formation of a somatic hybrid. <i>cf</i> cell fusion.
Industry:Biotechnology
The generic term for a group of female sex hormones which control the development of sexual characteristics and control oestrus.
Industry:Biotechnology
