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CfE Higher 12-13
CfE Higher Vocab - Topic 12 (Micro-orgs) & Topic 13 (Genetic Control)
Term | Definition |
---|---|
Mutagenic agent | Factors that increase the rate of mutation, e.g. X-rays. |
Death phase | Stage 4 of microorganism growth, the number of cells dying is now more than the number of new cells being produced. |
Restriction endonuclease | An enzyme that cuts specific target sequences of DNA. |
Recombinant DNA technology | A technique used to transfer gene sequences from one organism to another, and sometimes one species to another. |
Ethics | Rules of behavior based on ideas about what is morally good and bad. |
Stationary phase | Stage 3 of microorganism growth - the birth and death rate of microorganisms is equal. |
Log/exponential phase | Stage 2 of microorganism growth, microorganisms grow and multiply at their maximum rate. |
Mutagenesis | The process of changing a microorganism’s genetic material using mutagenic agents. |
Restriction site | A specific sequence of DNA that is cut open by a restriction enzyme. |
Lag phase | Stage 1 of microorganism growth, when the cells are adjusting to their surroundings. |
Generation time | The time taken for a cell to divide into two. |