Prion consists mainly of
Protein
DNA
RNA
Both 2 and 3
Related Questions
Which of the following are the indicators of pollution?
Lichen
Fungi
Algae
None of these
One of the following are very good pollution Indicator
Fungi
Bacteria
Lichens
Gold 8
Contagium vivum fluidum was proposed by
D.J. Ivanowsky
M.W. Beijerinck
Stanley
Robert Hooke
Outer covering of virus made up of protein is
Capsid
Coat
Virion
Viriod
I. DJ Ivanowsky (1892) recognised certain microbes as causal organisms of the mosaic disease of tobacco
II. MW Beijerinck (1898) demonstrated that the extract of infected plants of tobacco could cause infection in healthy plants and called the fluid as contagium vivum fluidum
III. WM Stanley (1935) showed that these microbes could be crystallised and crystals consist largely of protein
The above statements are assigned to
Bacteria
Virus
Prions
Lichens
AIDS in human is caused by
Virus
Bacteria
Protozoan
Bacteriophage
Pick out the wrong statement
Lichens are symbiotic associations
Lichens are very good pollution indicators
Lichens do not grow in unpolluted areas
The algal component of lichen is known as phycobiont
Which of the given feature is true about the viroids?
They have DNA as main genetic material
They are discovered by T.O Diener
Capsomeres are present
Larger than viruses
The agents which are known to cause CJD are
Protein particles
A class of bacteria
A class of viruses
Fungi
Which of the following statements is wrong for viroids?
They have a protein coat.
Their RNA is single-stranded.
Their RNA is circular.
They are smaller than viruses.
