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
Viroids differ from viruses in that they lack:
A protein coat
Genetic material
Infectivity
The ability to replicate
Which of the following statements is wrong for viroids?
They lack of protein coat
They are smaller than viruses
They cause infections
Their RNA is of high molecular weight
Which of the following is NOT a characteristic of viroids?
Circular single-stranded RNA
Smaller than viruses
Infectious in plants
Presence of a protein coat
How do viroids differ from viruses?
RNA without protein coat
DNA with protein coat
DNA without protein coat
RNA with protein coat
TO Diener (1971) discovered a new infections agent that was smaller than viruses
Consider the following statements about this infectious agent
I. It cause pototo spindle tuber disease
II. These are infectious RNA particles
III. It lacks the protein coat
IV. The molecular wt of its RNA is low
The above statements are assigned to
Viruses
Viroids
Prions
Lichen
Which component is ABSENT in viroids but PRESENT in viruses?
RNA
Protein coat
Genetic material
Infectivity
Which of the following statements accurately describes the structural composition of a viroid?
Double-stranded DNA with a protein coat
Circular single-stranded RNA without a protein coat
Single-stranded DNA without a protein coat
Double-stranded RNA with a protein coat
Viroids have
ssRNA not enclosed by protein coat
ssDNA not enclosed by protein coat
dsDNA enclosed by protein coat
dsRNA enclosed by protein coat
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 correct about viroids ?
They have RNA with protein coat
They have free RNA without protein coat
They have DNA with protein coat
They have free DNA without protein coat
