Thursday, 31 March 2016

Prions And Viroids

 Prions And Viroids :-
Prions:-
They Are Infectious  Proteins  Particles Thought To Be Responsible For Transmissible Neurodegenerative Diseases.
These Infectious Prion Proteins Are Modified Form Of Normal Proteins Which Are Synthesized In The Brian And Stem Cells In The Bone Marrow.
Prions Cause Disease In Human :- CJD  Which Mean Creutzfeldt Jacob Disease.
FFI Fatal Familial Insomnia


Viroids :-
Circular , small , Single Stranded Infectious RNA Molecules Lacking a proteins Coat. They Are
More Simple Than Viruses.
They Cause a disease in Plants Like , Potato Spindle-Tuber Disease,
Citrus Exorcist Disease, Cucumber Pale Fruit.
Viriods Cause Disease In Human Is  Hepatitis D.


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