Which of the following statement is false?
TMV has a double-stranded RNA molecule
Most plant viruses are RNA viruses
The bacteriophage has a double-stranded DNA molecule
Most animal viruses are DNA viruses
Related Questions
A place was rocky and barren but now there is a green forest, the sequence of origin is
Lichen, moss, herbs, shrubs
Moss, lichen, herbs, shrubs
Lichen, moss, shrubs, herbs
Shrubs, herbs, moss, lichen
Identify the correct pair that shows the double stranded RNA among the following
(a) 5'-GAUCCG-3' and 3'-CUAGGC-5'
(b) 5'-GAUCCG-3' and 5'-CUAGGC-3'
(c) 5'-GAUCCG-3' and 3'-GAUCCG-5'
(d) 5'-GAUCCG-3' and 5'-GAUCCG-3'
Lichen are mutualistic and have symbiotic associations between
Fungi and virus
Fungi and algae
Fungi and root of higher plants
Fungi and mosses
Viruses have
Living characteristics
Non-living characteristics
Both living and non-living characteristics
Parasitic characteristics
Enveloped virus enters into host cells by
Injecting own nucleic acid inside host cells
By contact with cell receptor and endocytosis
By phagocytosis
Fusion with the plasma membrane of host
Mosaic disease in tobacco is due to
Bacteria
Virus
Mycoplasma
Algae
Bare rock surfaces are initially colonized by organisms like lichens. What is the ecological term for such organisms?
Pioneer species
Climax community
Keystone species
Indicator species
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
The first organisms to colonise rocks are
Fungi
Lichens
Pteridophytes
Green 8
Bacteriophage are
Bacteria that attacks viruses
Viruses that attacks bacteria
Free living viruses
Free living bacteria
