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BME80H
FINAL
17
Biology
Undergraduate 3
12/10/2012

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Term
Molecular cloning
Definition
cloning a segment of DNA of interest
- cut vector with a restriction enzyme
-add ligase to add sequence of interest
-put the recombinant DNA in a bacterial cell (transformation)
-Amplify the DNA- make multiple copies in a culture
-Isolate the recombinant DNA
-Cut with restriction enzymes
Term
Role of vectors
Definition
Carrier molecules that are used in DNA cloning, self replication DNA molecules that are used to transfer foreign DNA segments between host cells
Term
Plasmids
Definition
-small circular DNA molecules that exist in the cytoplasm of bacterial cells
Term
Plasmid- Ori
Definition
-origin of replication, allows for replication of plasmid DNA, a selectable marker- allows for selection for cells that have plasmid DNA
Term
Unique restriction site
Definition
target for a restriction enzyme- where the insert will be inserted
Term
Screening for bateria with recombinant DNA
Definition
pBR322 vector: adding the insert disrupts a gene that otherwise would provide tetrocyclin resistance. Cells carrying recombinant DNA die in the presence of tetracycline maintain ampR
Term
pUC19 vector
Definition
adding insert dirsupts the lacZ gene. Lac Z encodes beta-galactosidase

X-Gal--> (beta gal) X + gal
want the white ones, not the blue
Term
cDNA libraries
Definition
contains a collection of recombinant DNA that is transcribed gene of interest
-copy of a fully processed mRNA
Term
Somatic Gene Therapy
Definition
Gene transfered into somatic cells of the body; single target tissue
-not passed on to the next generation
-doesn't last
Term
ADA
Definition
-destroying of white blood cells leads to a severe immune deficiency
-Bone marrow transplant is a cure- but could cause an attack on the patients tissue if not a match
Term
Germline Therapy
Definition
-Genetic engineering of organisms
-add new gene that is incorporated into the all of the organisms cells
-Change passed on to the next generation
Term
Modification in embryonic cells
Definition
- produces a chimera- not all cells have the same genotype
-inject cells into the early embryo
Term
DIrect DNA injection
Definition
- add gene to the male pronucleus before sygamy( where the cell is feterilized)
Term
Trasngenic plants
Definition
-undifferentiated cells (callus)
-add in particular thing to the plant
-bacterium uses a tumor (Ti) vector to introduce trans-gene
Term
Totipotent
Definition
- can give rise to all the cell types in the adult body and cells in supportive tissues- to the whole organism
Term
pluripotent
Definition
Present in the inner cell mass- able to give rise to all of the cell types in the body but cannot form an individual
Term
multipotent (adult stem cells-somatic stem cells)
Definition
Present in many tissues- tissue specific
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