Biosafety Guidelines For Research On Genetically Modified ...

somatic cell
Any cell of a multicellular organism other than germline
cells (q.v.).
Ti plasmid A large plasmid of the bacterium Agrobacterium
tumefaciens (q.v.) which carries genes for tumour
induction in some plants. A disarmed form of the plasmid
which lacks the tumour-inducing genes is often used as a
vector to introduce foreign DNA into plant cells.
tissue culture
In vitro growth of tissue cells in nutrient medium.
toxin A poisonous substance, produced mainly by
microorganisms, but also by some fungi, plants and
animals.
transgenic (organism)
tumour suppressor gene
vector
viroid
virulence
virus
zygote
An organism whose cells, including the germline cells,
contain foreign DNA; transgenic animals are produced by
the insertion of the foreign DNA into the newly fertilised
egg or embryo.
A type of gene in which inactivating mutations contribute
(or anti-oncogene) to tumour development.
A self-replicating agent (e.g. plasmid or virus) used to
transfer foreign DNA into a host cell.
A disease-causing agent of plants, which is smaller than a
virus and consists of a naked RNA molecule.
Ability of an organism to cause disease.
A submicroscopic infectious particle, containing genetic
material (DNA or RNA) and protein, which can replicate
only within the cell of an organism (plant, animal or
bacteria).
The cell produced by the union of the male and female
gametes.
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