Question

34.First originated

a) prion b) virion c) virus d) viroid

35.Prion is an infectious

a)nucleic acid b)protein c)nucleoprotein d)nucleolipid

36.Prion infects

a)muscle tissue b)epithelial tissue c)nervous tissue d)connective tissue

37.Size or molecular weight wise Prion is similar to

a)virus b)viroid c) both a and b d)bacteria



38.Cr-Jacob disease or Kuru is caused by prion in

a)cattle b)cow c)man d)sheep

39.Viroid is responsible for

a)late blight of potato b) early blight of potato c) spindle tuber of potato d) mosaic disease of potato leaf



40.Viroid was invented by

a)Beijerinek b)Ivanowsky c)T.O. Diener d)Stanley



41.Leaf roll of potato can be caused by

a)virus b) viroid c) bacteria d) protozoan Protista

42.Common symptoms caused by virus in plants

a)leaf rolling or curling b)yellowing and vein clearing c)dwarfing and stunted growth d) all of these

43.The RNA of viroid has molecular weight

a)lesser than that of TMV RNA b) greater than that of TMV RNA

c) lesser than prion RNA d)greater than prion RNA



44. Who of the following did not worked with TMV

a)Ivonowski b) Beijerink c)Stanley d) none of these



45.Virus is similar to

a)Proterospongia b) Gingo c) Archaeopoterix d) AOT

46.Pigment wise higher plants resemble with

a)chrysophytes b)dinoflagellates c)euglenoids d)slime mould

47.Though slime moulds are included in Protista but can be considered as

a)myxomycota b) sporozoan Protista c) platae d) monera

48.Underfavourable condition slime moulds form an aggregation called

a)sporozoite b) plasmodium c) zooglea d) coenobium



49.Spores are dispersed by air current in case of

a)slime mould b)euglenoid c)sporozoans d)chrysophytes



50.One plant like character found in slime mould is

a)presence of cell wall b)presence of cellulosic wall in spore condition c)multinucleated cell d)all of these



51.The plasmodium condition can move by forming

a)cilia b)flagella c)pseudopodia d)tail

52.Sporozoite condition can be formed by

a)Plasmodium b) Giardia c) Amoeba d) AOT​

Answer 1

Answer:

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Answer 2

Answer:

prion is an infectitious protein