Genetic Technology Flashcards
agarose gel
used to separate DNA molecules of different sequence lengths
polyacrylamide
use to separate proteins of various amino acid lengths
blotting
used to detect molecules & preserve the same for later
southern blotting
detection of specific DNA sequences
Northern blotting
detects RNA
western blotting
detects specific proteins
PCR - polymerase chain reaction
what are the 3 steps used?
- denaturing - the DNA (98 degrees C)
- annealing - complimentary nucleotides called primes attach to the single stranded templates (50-65 degrees C)
- Extension - by attaching bases (72 degrees C)
DNA cloning
used for gene amplification
DNA sequencing
used for analysis of DNA
Restriction fragment length polymorphism (RFLPs) `
restriction enzymes bind to & cut the dsDNA; a different fragment length lets you know there is a difference in the specific sequence within the individual
Gel electrophoresis
separates molecules of different sizes using a charge gradient