POLYMERASE CHAIN REACTION Flashcards
An ______ method for amplifying DNA segments that depends on repeated cycles of denaturation, primer annealing, and DNA polymerase-directed DNA synthesis
In vitro - Polymerase Chain Rxn
Rapid creation of a large quantity of product (_____) from very small quantities of the DNA template
amplicons - PCR
PCR is developed by ____ in _____
Karry Mullis - 1983
PCR is discovered while working through a ________
mutation-detection method
First successful amplification (PCR)
Escherichia coli plasmid, pBR322
First paper of practical application (PCR)
amplification of beta-globulin and analysis for diagnosis of sickle cell anemia
PCR is called the method “________________” because _________ was the enzyme used to drive the replicationof DNA in a chain rxn
Polymerase catalyzed chain reaction - DNA polymerase
PCR is classified under a larger group of molecular techniques known as “____________”
Nucleic Acid Amplification Techniques (NATs)
Types of NATs
TPS
- Target
- Probe
- Signal
Tests under TARGET AMPLIFICATION
PTG
PCR, Transcription-based amplification system, Genome amplification methods)
Tests under Probe Amplification
LQS
Ligase chain rxn, Strand displacement amplification, QB(eta) replicase
Tests under Signal Amplification
BHCC
Branched DNA amplification, Hybrid capture assays, Cleavage-based amplification, Cycling probe
Involves making many copies of specific DNA sequence
Target Amplification
this method of cloning DNA using vectors and host cells is LABOR INTENSIVE and TIME-CONSUMING
Waiting for cells to replicate at detectable levels, it can take __________, whereas replicating the nucleic acid in vitro only takes ________
days to weeks or months - minutes to hours - Target amplification
Application of PCR
- Screen mutations
- Detect bacteria and viruses in humans and pathogenic bacteria in contaminated food
- Collect DNA from extinct species
- Comparison of DNA
- Forensics (paternity testing, crime scene, ID)
- Production of DNA segments