Which statement about the structure of viroids is FALSE?
They are composed of double-stranded RNA.
They lack a protein coat.
They have a circular RNA molecule.
They are smaller than viruses.
Related Questions
The association between blue-green algae and fungi occurs in
lichens
symbiosis
cannibism
mycorrhiza
Which one of the following does not grow in artificial media?
TMV
Bacteria
Yeast
Rhizopus
The symbiotic relationship between fungi and algae is called
Lichen
Mycorrhiza
Helotism
Mutualism
The benefit of algae in lichen is
Food for fungi
Shelter
Mineral absorption
Protection
Lichens are a symbiotic association between:
Algae and bacteria
Fungi and bacteria
Algae and fungi
Protozoa and fungi
The advantage of fungus in lichen is
Food
Shelter
Mineral absorption
Both (b) and ©
A term ‘helotism’ is used for the symbiosis of
Algae and fungi
Algae and Cycas
Algae and bacteria
Pinus and fungi
Lichen are mutualistic and have symbiotic associations between
Fungi and virus
Fungi and algae
Fungi and root of higher plants
Fungi and mosses
Which of the following statement is correct?
Viruses are obligate parasites
All fungi are pathogenic
All algae are eukaryotes
Bacteria are always harmful to mankind
The fungal component of a lichen is called:
Phycobiont
Mycobiont
Bacteriobiont
Protobiont
