Undigested particles are eliminated from the cell through the ___________________

During binary fission in Paramecium, the rear daughter cell receives a new gullet?

Which of the following comprises large cone-shaped protozoa?

The most complex type of bacterial virus has which of the following morphological features?

What is the shape of helical phages?

Which of the following are said to have binal symmetry?

The DNA of phage lambda is circular both in the virion and in the host cell.

Which of the following is a family of lambda phage viruses?

Which of the following coliphage has tadpole shape?

Which of the following is the first step in replication by bacterial phages?

At what temperature incubation is required for the adsorption of phage T4 and DNA injection into E.coli?

The protein coat of the virus remains outside the host cell.

Which of the following enzymes transcribe late genes?

What is the colour of the plaque formed?

In which of the following method, the viral particles are transmitted through lysis of cell?

Which of the following is the characteristic of repressor protein?

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 ______________