Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
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 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.
How do viroids differ from viruses?
RNA without protein coat
DNA with protein coat
DNA without protein coat
RNA with protein coat
Which component is ABSENT in viroids but PRESENT in viruses?
RNA
Protein coat
Genetic material
Infectivity
Which organism is most likely to have genes containing introns that require processing by spliceosomes?
Bacteria
Virus
Yeast
Archaea
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
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
Bacteriophage are
Bacteria that attacks viruses
Viruses that attacks bacteria
Free living viruses
Free living bacteria
Viruses have
Living characteristics
Non-living characteristics
Both living and non-living characteristics
Parasitic characteristics
Which of the following statements are true?
I. Genetic RNA occurs in certain viruses called ribovirus
II. RNA of riboviruses may be single stranded
III. Double stranded RNA may also be present in riboviruses
All are correct
Only I
All are incorrect
Only II
