balanced
threshold
transitional
none of these
C. transitional
prophage
vegephaege
cyanophage
phycophage
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
balanced
threshold
transitional
none of these
mumps
cholera
typhoid
plague
D. Iwanowski
F.C. Bawden
W.M. Stanley
K.M.Smith
antivirin
antigen
virion
interferon
1 nm
3 nm
6 nm
2 nm
can grow inside a living host
can multiply inside a living host
can undergo mutation inside a living host
are non-cellular
DNA
RNA
DNA and RNA
None of these
episome
mesosome
free DNA
T-phage
vaccination against small pox
vaccination against chicken pox
immunization against small pox
immunization against chickcn pox
Tobacco mosaic virus
Poxvirus
Potato spindle tuber virus
None of these
Stanley
Iwanowiski
Twort
Herelle
Protein part of virus
Nucleic part of virus
Both (a) and (b)
None of these
bacteriophage
coliphage
phytophage
zoophage
a buch of genomes which are looking for a suitable host for replication
micro-organisms which contains DNA only
smallest micro-organisms causing disease
micro-organisms which contains RNA only
lesion
lysis
autolysis
haemolysis
viruses
slimemoulds
fungi
bacterium
Smith
Temin
Twort
Mayer
DNA
RNA
both DNA and RNA
none of these
double stranded RNA
single stranded DNA
double stranded DNA
single stranded RNA
Safferman and Morris
Lederberg and Zinder
Smithv and Knight
None of these
plaque
phnge
streak
krnn/
RNA
DNA
DNA and RNA
none of these
viruses
bacteria
algae
fungi
picornaviruses
binal viruses
riboviruses
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
are colourless
have enzymes
have nucleic acids
none of these
Tobacco mosaic virus
Potato mosaic virus
Cauliflower mosaic virus
Tomato mosaic virus
lysis
lysogeny
prophage
attenuated virus