T.O. Diener discovered a new infections agent that was smaller than viruses and having following characteristics.
I) It causes potato spindle tuber disease
II) It has free RNA
III) Molecular weight of RNA is low
Which is the correct option far all the given characteristics?
Viruses
Viroids
Virion
Mycoplasma
Related Questions
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
The protein coat of a virus/is known as
Nucleoid
Capsid
Capsomere
Outer envelope
Which of the following would appear as the pioneer organisms on bare rocks?
Lichens
Liverworts
Mosses
Green algae
Mendel's experiments DISPROVED which of the following concepts?
Genes exist in pairs.
Some traits are dominant over others.
Blending inheritance
Traits can be inherited independently.
Lichen is the pioneer vegetation on which succession?
Hydrosere
Lithosere
Psamosere
Xerosere
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 disease is NOT caused by prions?
Bovine Spongiform Encephalopathy (BSE)
Creutzfeldt-Jakob Disease (CJD)
Kuru
Measles
Prions are infectious agents primarily composed of:
DNA
RNA
Protein
Carbohydrate
Tobacco mosaic virus is
Spherical-shaped
Rod-shaped
Cuboidal
Oval-shaped
Which of the following is the smallest infectious agent known?
Virus
Bacteria
Viroid
Prion
