- 行业: 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 ...
A variety of mechanisms that repair errors that occur during DNA replication.
Industry:Biotechnology
A vector that is designed to integrate cloned DNA into the host cell chromosomal DNA.
Industry:Biotechnology
A vegetable organism that derives its nutriment from decaying organic matter.
Industry:Biotechnology
A viable transformed cell resulting from genetic engineering.
Industry:Biotechnology
A viral gene that is expressed promptly after infection.
Industry:Biotechnology
A virulent organism that has been modified to produce a less virulent form, but nevertheless retains the ability to elicit antibodies against the virulent form.
Industry:Biotechnology
A virus capable of transforming a cell to a malignant phenotype.
Industry:Biotechnology
A virus that infects bacteria. Also called simply phage. Altered forms are used in DNA cloning work, where they are convenient vectors. The bacteriophages most used are derived from two "wild" phages, called M13 and lambda (1). Lambda phages are used to clone segments of DNA in the range of around 10-20 kb. They are lytic phages, i.e., they replicate by lysing their host cell and releasing more phages. On a bacteriological plate, this results in a small clear zone - a plaque. Some lambda vectors have also been developed which are expression vectors (q.v.). The M13 system can grow inside a bacterium, so that it does not destroy the cell it infects but causes it to make new phages continuously. It is a single-stranded DNA phage, and is used for the Sanger di-deoxy DNA sequencing method. Both of these phages grow on <i>Escherichia coli</i> as a host bacterium.
Industry:Biotechnology
A virus that provides a function or functions to another virus in the same cell.
Industry:Biotechnology
A virus, bacterium or other organism that has been treated to prevent it from causing a disease.
Industry:Biotechnology
