Which of the following phenomenon proves that viruses are living?
They carry metabolic activity
They carry anaerobic respiration
They multiply in host cells
They cause infection
Related Questions
A teacher was explaining about a constant physical contact involving almost equal physiological interdependence in two different thalloid forms. He was trying to explain
Mycorrhizal association
Establishment of heterothallism
Operation of heterothallism
Advent of lichen formation
The agents which are known to cause CJD are
Protein particles
A class of bacteria
A class of viruses
Fungi
Bare rock surfaces are initially colonized by organisms like lichens. What is the ecological term for such organisms?
Pioneer species
Climax community
Keystone species
Indicator species
Which of the following is NOT a conclusion from Mendel's experiments?
Traits are inherited as discrete units.
Traits in offspring are a blend of parental traits.
Genes for different traits assort independently.
Some traits are dominant and others are recessive.
Which of the given feature is true about the viroids?
They have DNA as main genetic material
They are discovered by T.O Diener
Capsomeres are present
Larger than viruses
A term ‘helotism’ is used for the symbiosis of
Algae and fungi
Algae and Cycas
Algae and bacteria
Pinus and fungi
The viruses are non cellular organisms that are charactarised by
Absence of Nucleic acid
An active structure outside the living cell
An inert crystalline structure outside the cell
Their hyper activity outside the cell
Enzymes are absent in?
Algae
Fungi
BGA
Virus
T O Diener discovered a
Free infectious RNA
Free infectious DNA
Infectious protein
Bacteriophage
Lichen are mutualistic and have symbiotic associations between
Fungi and virus
Fungi and algae
Fungi and root of higher plants
Fungi and mosses
