MLSBIO101 RECOMBINANT DNA TECHNOLOGY Flashcards
What do you call DNA molecules that are extracted from different sources and chemically joined together?
Recombinant DNA Technology
What is the DNA comprising animal gene which may be recombined with DNA from a bacterium?
Recombinant DNA Technology
What year is the discovery of DNA structure by Watson and Crick?
1953
Who discovered DNA structure in 1953?
Watson and Crick
What year is the isolation of DNA ligase?
1967
What year is the isolation of REase?
1970
What year did Paul Berg generated rDNA technology?
1972
Who generated rDNA technology in 1972?
Paul Berg
What year did Cohen and Boyer produced the first plasmid vector capable of being replicated within a bacterial host?
1973
Who produced the first plasmid vector capable of being replicated within a bacterial host?
Cohen and Boyer
What are the goals of recombinant DNA technology?
- To isolate and characterize a gene
- TO make desired alterations in one or more isolated genes
- To return altered genes to living cells
- Artificially synthesize new gene
- Alternating the genome of an organism
- Understanding the hereditary diseases and their cure
- Improving human genome
What are the 4 procedures of making rDNA?
- Isolating of DNA
- Cutting of DNA
- Joining of DNA
- Amplifying of DNA
In Isolation of DNA, cells are lysed using ____ in order to disrupt the plasma membrane.
Detergent
In Isolation of DNA, after lysing the cells, it is treated with____ to destroy protein and ___ to destroy RNA.
Protease and RNAase
In isolation of DNA, after centrifuging the test tube, what do you transfer to a clean tube?
Supernatant
In Isolation of DNA, What do you use to precipitate the DNA after transferring the supernatant to a clean test tube?
Ethanol
In cutting of DNA, how does DNA cut into large fragments?
Mechanical Shearing
In cutting of DNA, what are the scissors of molecular genetics?
Restriction Enzymes
What is a special class of sequence-specific enzyme?
Restriction Enzyme
What enzyme is found in bacteria?
Restriction Enzyme
T/F. Site-specific-cleave DNA molecules only cleaves at specific nucleotide sequence.
True
What characteristic do REases recognize DNA base sequence?
Palindrome
T/F. REase make staggered cuts with complementary base sequences for easy circulization.
True
In amplifying the recombinant DNA, To what is the recombinant DNA transformed into?
Bacterial host strain
In Amplification, what do you treat the cells?
CaCl2 or Calcium chloride
In amplification, what temperature are the cells heat shocked?
42 C
What enzyme binds to DNA molecules?
DNA Ligase
What enzyme cleaves DNA at specific sites?
Type II Restriction Endonuclease
What enzyme makes a DNA copy of RNA molecule?
Reverse Transcriptase
What enzyme fills single stranded gapes of DNA duplex?
DNA Polymerase I