BioScience Dictionary

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Found Transformation 16 times.

Displaying results 1 to 10.

1. Abiotic transformation
An abiotic transformation is any process in which a chemical in the environment is altered by non-biological mechanisms (such as by exposure to sunlight).

2. Bacterial transformation
A genetics lab procedure where bacteria are induced to accept and incorporate into their genome foreign pieces of cell -less, isolated DNA , often in the form of a plasmid . The DNA to be introduced usually contains a selectable marker so that the bacteria which successfully incorporate the DNA can be selected for.

3. Biogeochemistry
Study of microbially-mediated chemical transformations of geochemical interest, e.g. nitrogen or sulfur cycling.

4. Biotransformation (bioconversion)
* The sequence of chemical reactions which a compound goes through in the body of an organism (including plants). * The conversion of a compound from one form to another by the actions of organisms or enzyme s.

5. Cometabolism
The metabolic transformation of a substance while a second substance serves as primary energy or carbon source.

6. Contransformation (double transformation)
The incorporation of two or more linked gene s on the same fragment of foreign DNA into the genome of a bacterium .

7. Epigenetic changes
Any changes in an organism brought about by alterations in the action of gene s are called epigenetic changes. Epigenetic transformation refers to those processes which cause normal cells to become tumor cells without the occurrence of any mutation s.

8. Immortalization
* Causing something (or someone) to exist (or live) forever. * The transformation of a line of lab- culture d cell s into a line which is able to grow unrestrictedly (given ample nutrients).

9. Metabolic activation
Biotransformation of relatively inert chemicals to biologically reactive metabolite s.

10. Neoplastic transformation
Neoplastic transformation is the conversion of normal cells into tumor cells. Frequently this is the result of a genetic change ( mutagenesis ) and the same term is used to describe the genetic modification of bacteria for use in biotechnology. See epigenetic change s, genetic toxicology , genotoxic , mutation , mutagenesis , tumor .