List one example of type I, type II, type III and type IV hypersensitivity. Plac

Question

List one example of type I, type II, type III and type IV hypersensitivity. Place the following steps in genetic engineering in their proper sequence by placing the numbers 1 through 5 in the blank to the left of each step. _____ The plasmid is passed into a bacterium through transformation _____ The desired gene is isolated from an organism _____ The desired gene is reisolated from the plasmid and inserted into another target cell _____ Bacteria are allowed to replicate, amplifying the number of plasmids _____ The desired gene is inserted into a plasmid

Explanation / Answer

Ans-1

Hypersensitivity-

Type I or Allergy (immediate)- Mediated by IgE antibody

Example-

Type II or Cytotoxic, antibody-dependent- mediated by IgM or IgG antibody

Example-

Type III or Immune complex disease- mediated by IgG antibody

Example-

TypeIV or Delayed-type hypersensitivity- mediated by T-cell

               

Example-

Celiac Disease

Ans-2

The desired gene is isolated from an organism_the desired gene is inserted into thde plasmid_the plasmid is passed into a bacterium through transformation_the bacteria are allowed to replicate , amplifying the number of plasmid_the desired gene is reisolated from the plasmid and inserted into another target cells.

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