2.7: Genetic Control of Metabolism Flashcards
What can improve wild strains?
mutagenesis
What causes mutations
exposure to UV light causing radiation
mutagenetic chemicals
Define mutagenic
A chemical capable of genetic changes
Creation of mutations
Define vector
a DNA molecule used to carry foreign genetic information into another cell
Give examples of vectors
plasmids
artificial chromosomes
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What is the restriction site
The target sequence of DNA where specific endonuclease cut
What is a selectable marker?
resistance genes protecting the micro-organism from a selective agent
what is a safety mechanism
genes introduced to prevent the micro-organism from surviving in its external enviornmnet
What are recombinant yeast cells used for
to produce active forms of protein which are inactive in bacteria
When is a plasmid preferable as a vector?
When fragments are larger.
