Tobacco mosaic virus
Poxvirus
Potato spindle tuber virus
None of these
C. Potato spindle tuber virus
Tobacco mosaic virus
Poxvirus
Potato spindle tuber virus
None of these
multiply only in the host cytoplasm
are made up of proteins only
behave as if they were plants
occur only inside bacteria
DNA
RNA
DNA and RNA
None of these
poison
secretion
cell
venom
viruses
bacteria
algae
fungi
vaccination against small pox
vaccination against chicken pox
immunization against small pox
immunization against chickcn pox
episome
mesosome
free DNA
T-phage
lesion
lysis
autolysis
haemolysis
balanced
threshold
transitional
none of these
living organisms
non-living organisms
a transitional group between living and non-living world
living organisms which have lost the power of multiplication
RNA
DNA
DNA and RNA
none of these
are colourless
have enzymes
have nucleic acids
none of these
bacteriophage
coliphage
phytophage
zoophage
Replication
Mutation
Production of energy
Growth
double stranded RNA
single stranded DNA
double stranded DNA
single stranded RNA
RNA of the virus
DNA of the virus
RNA of the host
Ribosome of the host
lysis
lysogeny
prophage
attenuated virus
picornaviruses
binal viruses
riboviruses
none of these
Safferman and Morris
Lederberg and Zinder
Smithv and Knight
None of these
viruses
slimemoulds
fungi
bacterium
mumps
cholera
typhoid
plague
can grow inside a living host
can multiply inside a living host
can undergo mutation inside a living host
are non-cellular
an outer protein coat and a central core of DNA or RNA
outer RNA or DNA and a central core of proteins
only nucleic acids
only protein coats
viruses
bacteria
fungi
none of these
Tobacco mosaic virus
Potato mosaic virus
Cauliflower mosaic virus
Tomato mosaic virus
they kill all bacteria which form host of viruses
viruses have no metabolism of their own
viruses form endospores
viruses are too small in size
Stanley
Iwanowiski
Twort
Herelle
prophage
vegephaege
cyanophage
phycophage
Smith
Temin
Twort
Mayer
1 nm
3 nm
6 nm
2 nm