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NEET BIOLOGYBiological Classification Easy

Question

Viroids differ from viruses in having;

A

DNA molecules without protein coat

B

RNA molecules with protein coat

C

RNA molecules without protein coat

D

DNA molecules with protein coat

Step-by-Step Solution

viroids are infectious agents discovered by T.O. Diener that are smaller than viruses. They were found to be a free RNA; they lacked the protein coat that is found in viruses, hence the name viroid .

Exam Context & Concepts Covered

This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Biological Classification . Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

BIOLOGYBiological Classification viroidsdifferviruseshaving

More Biological Classification Questions

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Which, among the following, are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

A.Pseudomonas
B.Mycoplasma
C.Nostoc
D.Bacillus
EasySolve

Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?

A.Paramecium and Plasmodium belong to the same kingdom as that of Penicillium
B.Lichen is a composite organism formed from the symbiotic association of algae and a protozoan
C.Yeast used in making bread and beer is a fungus
D.Nostoc and Anabaena are examples of Protista
MediumSolve

Select the wrong statement:

A.The walls of diatoms are easily destructible
B.Diatomaceous earth is formed by the cell walls of diatoms
C.Diatoms are chief producers in the oceans
D.Diatoms are microscopic and float passively in water
EasySolve

Given below is the diagram of a bacteriophage. In which one of the options, all the four parts A, B, C and D are correct?

A.Sheath, Collar, Head, Tail fibres
B.Head, Sheath, Collar, Tail fibres
C.Collar, Tail fibres, Head, Sheath
D.Tail fibres, Head, Sheath, Collar
EasySolve

Chrysophytes, euglenoids, dinoflagellates and slime moulds are included in the kingdom:

A.Protista
B.Fungi
C.Animalia
D.Monera
EasySolve

Which of the following statements is wrong for viroids?

A.They are smaller than viruses
B.They cause infections
C.Their RNA is of high molecular weight
D.They lack a protein coat
EasySolve

Cell wall is absent in:

A.Nostoc
B.Aspergillus
C.Funaria
D.Mycoplasma
EasySolve

Which one of the following sets of items are correctly categorised with one exception in it? | | Items | Category | Exception | | :--- | :--- | :--- | :--- | | (a) | Kangaroo, Koala, Wombat | Australian Marsupials | Wombat | | (b) | Plasmodium, Cuscuta, Trypanosoma | Protozoan parasites | Cuscuta | | (c) | Typhoid, Pneumonia, Diphtheria | Bacterial diseases | Diphtheria | | (d) | UAA, UAG, UGA | Stop codons | UAG |

A.Kangaroo, Koala, Wombat – Australian Marsupials – Wombat
B.Plasmodium, Cuscuta, Trypanosoma – Protozoan Parasites – Cuscuta
C.Typhoid, Pneumonia, Diphtheria – Bacterial Diseases – Diphtheria
D.UAA, UAG, UGA – Stop Codons – UAG
HardSolve

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