cro gene is an example of an immunity repressor.

From which of the following animal was the material isolated which was used for the vaccination for the first time?

Vaccination was invented by ____________

Causative agent of tobacco mosaic disease was filterable.

Yellow fever virus can be attenuated by serial passage on cultures of ______________

Effective poliomyelitis vaccines were developed by culturing the virus of poliomyelitis on the kidney cells of which animal?

Translation of mRNA into proteins takes place in the ________________

Adenoviruses exhibit which of the following symmetry?

The fringes on animal viruses like influenza virus is made up of ______________

Animal and plant viruses contain both DNA and RNA in the same virion.

Parvoviruses contain how many genes?

In papovaviruses, DNA occurs in which of the following forms?

RNA in animal viruses exist as circular dsRNA.

Rous sarcoma virus consists of RNA as its genetic material.

Which of the following viruses possess an envelope?

The family of Rhabdoviridae possesses dsRNA.

Cowpea virus belongs to which of the following group of viruses?

For the cultivation of viruses the fertile chicken eggs should be incubated for how many day(s)?

The karyotype of cells formed from continuous cell lines is _______________

Cancer of the lip of mouth have been associated with ___________

In which of the following situations will the logarithmic plot of survivors be constant?