TOPICWISE QUESTIONS

Virus is a/an

Genetic material of TMV is a

Select incorrectly matched pair:

Lichens are considered as indicators of ${\mathrm{SO}}_2$ pollution because

Consider the following statements w.r.t. viruses and state true (T) and false (F):

(a) Viruses can multiply only when they are inside the living cells.

(b) Virus cannot pass through bacterial proof filter.

(c) Viruses that infect animals have either single- or double-stranded DNA or single-stranded RNA.

(d) Viruses cause diseases such as mumps, smallpox, herpes, citrus canker, and tobacco mosaic disease.

The concept of ‘Contagium vivum fluidum’ (living infectious fluid) for virus was given by

Mad cow disease is caused by

Select the incorrect statement about viroids: