viruses
bacteria
fungi
none of these
plaque
phnge
streak
krnn/
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
prophage
vegephaege
cyanophage
phycophage
antivirin
antigen
virion
interferon
viruses
bacteria
algae
fungi
1 nm
3 nm
6 nm
2 nm
lesion
lysis
autolysis
haemolysis
transformation
transduction
conjugation
candidiasis
living organisms
non-living organisms
a transitional group between living and non-living world
living organisms which have lost the power of multiplication
lysis
lysogeny
prophage
attenuated virus
D. Iwanowski
F.C. Bawden
W.M. Stanley
K.M.Smith
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
viruses
slimemoulds
fungi
bacterium
double stranded RNA
single stranded DNA
double stranded DNA
single stranded RNA
DNA
RNA
both DNA and RNA
none of these
Smith
Temin
Twort
Mayer
bacteriophage
coliphage
phytophage
zoophage
Replication
Mutation
Production of energy
Growth
Early blight of potato
Late blight of potato
Leaf roll of potato
None of these
Tobacco mosaic virus
Potato mosaic virus
Cauliflower mosaic virus
Tomato mosaic virus
vaccination against small pox
vaccination against chicken pox
immunization against small pox
immunization against chickcn pox
multiply only in the host cytoplasm
are made up of proteins only
behave as if they were plants
occur only inside bacteria
picornaviruses
binal viruses
riboviruses
none of these
RNA
DNA
DNA and RNA
none of these
are colourless
have enzymes
have nucleic acids
none of these
mumps
cholera
typhoid
plague
virion
vira
viroid
none of these
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
episome
mesosome
free DNA
T-phage