antivirin
antigen
virion
interferon
mumps
cholera
typhoid
plague
Smith
Temin
Twort
Mayer
viruses
bacteria
fungi
none of these
RNA
DNA
DNA and RNA
none of these
viruses
slimemoulds
fungi
bacterium
viruses
bacteria
algae
fungi
virion
vira
viroid
none of these
Replication
Mutation
Production of energy
Growth
multiply only in the host cytoplasm
are made up of proteins only
behave as if they were plants
occur only inside bacteria
Safferman and Morris
Lederberg and Zinder
Smithv and Knight
None of these
RNA of the virus
DNA of the virus
RNA of the host
Ribosome of the host
D. Iwanowski
F.C. Bawden
W.M. Stanley
K.M.Smith
lysis
lysogeny
prophage
attenuated virus
poison
secretion
cell
venom
picornaviruses
binal viruses
riboviruses
none of these
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
double stranded RNA
single stranded DNA
double stranded DNA
single stranded RNA
transformation
transduction
conjugation
candidiasis
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
bacteriophage
coliphage
phytophage
zoophage
prophage
vegephaege
cyanophage
phycophage
Stanley
Iwanowiski
Twort
Herelle
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
can grow inside a living host
can multiply inside a living host
can undergo mutation inside a living host
are non-cellular
living organisms
non-living organisms
a transitional group between living and non-living world
living organisms which have lost the power of multiplication
lesion
lysis
autolysis
haemolysis
vaccination against small pox
vaccination against chicken pox
immunization against small pox
immunization against chickcn pox
balanced
threshold
transitional
none of these
1 nm
3 nm
6 nm
2 nm