What are the restriction sites in pBR322?
pBR322 contains multiple restriction sites including sites for BamHI, HindIII, SalI, PvuI, PvuII, PstI, EcoRI and ClaI restriction enzymes. Further... View Article
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Is ROP a selectable marker?
ROP gene codes for a protein involved in the replication and regulates the number of copies produced. Further reading: Plasmid... View Article
Who discovered plasmid?
The term plasmid was coined by J Lederberg in 1952 to describe extrachromosomal genetic material. Further reading: Plasmid What Is... View Article
What is pUC18?
pUC18 is an artificial plasmid cloning vector. Further reading: Plasmid What Is EcoR1? MCQs On Lac Operon Genetically Engineered Insulin... View Article
How many cloning sites are there in pBR322?
pBR322 contains restriction sites for more than 40 restriction enzymes including BamHI, HindIII, SalI, PvuI, PvuII, PstI, EcoRI, ClaI. Further... View Article
Which is the first cloning vector?
The first cloning vector was produced by Herbert Boyer and Stanley Cohen. It was a plasmid vector called pSC101. Further... View Article
Why is pBR322 a useful vector?
pBR322 is a useful vector because it contains antibiotic resistance genes as a selectable marker and recognition sites for the... View Article
What is pBR322 used for?
pBR322 is a plasmid cloning vector used in E. coli. Further reading: Plasmid What Is EcoR1? MCQs On Lac Operon... View Article
What is reporter gene give example?
Reporter gene is a gene that is attached to the regulatory sequence to be studied. It imparts a specific characteristic,... View Article
What are cloning sites and explain their role?
Cloning site is the site where DNA is inserted into the vector. Restriction enzyme recognises the recognition site and cuts... View Article
What is the function of ORI site?
Ori site is the sequence of DNA where replication starts. Further reading: Plasmid What Is EcoR1? MCQs On Lac Operon... View Article
How do Ori and cloning sites facilitate cloning into a vector?
Ori site is responsible for initiating the replication and the cloning site is where the foreign DNA is inserted into... View Article
What antibiotic resistant genes are in pBR322?
The plasmid pBR322 contains two antibiotic resistance genes for ampicillin and tetracycline. Further reading: Plasmid What Is EcoR1? MCQs On... View Article
What will be the effect if pBR322 a cloning vector does not carry Ori site?
Ori site is required for initiation of replication, if the ori site is absent then replication will not start. Further... View Article
What is the antibiotic resistance gene?
Antibiotic resistance genes help a bacteria survive the antibiotics. Further reading: Plasmid What Is EcoR1? MCQs On Lac Operon Genetically... View Article
What are transformants and non transformants?
Transformants are the cells that have taken up the foreign DNA by transformation, whereas non-transformants are the cells that have... View Article
What are selectable markers give two examples?
Selectable markers are the genes present in the cloning vectors that help in eliminating the non-transformants. E.g. antibiotics resistance genes,... View Article
Why do cloning plasmids contain selection markers?
Cloning plasmids contain selectable markers so that the plasmid containing the DNA insert can be separated from the non-recombinants ones.... View Article
What is the function of the enzyme coded by the gene Z?
The gene z codes for the enzyme -galactosidase. It is responsible for the hydrolysis of lactose, a disaccharide to two... View Article
What are marker genes used for?
Marker genes are used to distinguish between recombinants and non-recombinants. Further reading: Plasmid What Is EcoR1? MCQs On Lac Operon... View Article
