are colourless
have enzymes
have nucleic acids
none of these
C. have nucleic acids
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
double stranded RNA
single stranded DNA
double stranded DNA
single stranded RNA
Early blight of potato
Late blight of potato
Leaf roll of potato
None of these
prophage
vegephaege
cyanophage
phycophage
DNA
RNA
DNA and RNA
None of these
viruses
bacteria
algae
fungi
viruses
bacteria
fungi
none of these
are colourless
have enzymes
have nucleic acids
none of these
D. Iwanowski
F.C. Bawden
W.M. Stanley
K.M.Smith
transformation
transduction
conjugation
candidiasis
Smith
Temin
Twort
Mayer
living organisms
non-living organisms
a transitional group between living and non-living world
living organisms which have lost the power of multiplication
can grow inside a living host
can multiply inside a living host
can undergo mutation inside a living host
are non-cellular
lesion
lysis
autolysis
haemolysis
bacteriophage
coliphage
phytophage
zoophage
episome
mesosome
free DNA
T-phage
Safferman and Morris
Lederberg and Zinder
Smithv and Knight
None of these
poison
secretion
cell
venom
Protein part of virus
Nucleic part of virus
Both (a) and (b)
None of these
Replication
Mutation
Production of energy
Growth
RNA
DNA
DNA and RNA
none of these
Stanley
Iwanowiski
Twort
Herelle
1 nm
3 nm
6 nm
2 nm
antivirin
antigen
virion
interferon
Tobacco mosaic virus
Potato mosaic virus
Cauliflower mosaic virus
Tomato mosaic virus
picornaviruses
binal viruses
riboviruses
none of these
RNA of the virus
DNA of the virus
RNA of the host
Ribosome of the host
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
slimemoulds
fungi
bacterium