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
Lichens are composite organisms consisting of a fungus and a photosynthetic partner (algae), growing together in a symbiotic relationship Consider the following statements about lichensI. Lichen are very good air pollution indicatorsII. Algal partner and fungal partner live mutuallyIII. Algae prepares food for fungiIV. Fungi provides shelter and absorbs water and minerals for algal partnerWhich of the statements given above are correct?
I, II and III
II, III and IV
I, II and IV
I, II, III and IV
Which of the following statement is false?
TMV has a double-stranded RNA molecule
Most plant viruses are RNA viruses
The bacteriophage has a double-stranded DNA molecule
Most animal viruses are DNA viruses
Which statement is wrong for viruses?
They reproduce only inside the host cell.
They have no cellular structure.
They have no metabolism.
They grow.
Which is correct?
RNA is genetic material of bacteria
RNA is genetic material of all virus
DNA is genetic material of some organism
Some virus has RNA as genetic material
In the process of primary succession, which of the following plays the role of a pioneer organism, breaking down rock to form soil?
Lichens
Ferns
Mushrooms
Insects
Which of the following can not be grown on artificial culture medium?
Eschaerichia Coli
TMV
Aspergillus
Yeast
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
Find out the correct statement
20°C is equal to 68°F
20°C is equal to 70°F
20°C is equal to 60°F
20°C is equal to 72°F
How do viroids differ from viruses in their structural composition?
Viroids have DNA, while viruses have RNA.
Viroids have a protein coat, while viruses do not.
Viroids lack a protein coat, while viruses have a protein capsid.
Both viroids and viruses have a protein capsid.
Which of the following is NOT a characteristic of a virus?
Presence of genetic material
Ability to replicate inside a host cell
Independent metabolism
Non-cellular organization
