NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

PRIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A common method for cultivating viruses in the lab is to use in vitro systems called ____ cultures.
A
egg
B
cell
C
bacteriophage
D
embryo
Explanation: 

Detailed explanation-1: -Tissue culture is a useful method for cultivating clinical samples suspected of harboring a virus. This method helps with the detection, identification, and characterization of viruses in the laboratory.

Detailed explanation-2: -Some viruses are restricted in the kinds of cells in which they replicate, and a few have not yet been cultivated at all under laboratory conditions. However, most viruses are grown in cultured cells, embryonated hen’s eggs, or laboratory animals.

Detailed explanation-3: -There are three types of tissue culture; organ culture, explant culture and cell culture. Organ cultures are mainly done for highly specialized parasites of certain organs e.g. tracheal ring culture is done for isolation of coronavirus. Explant culture is rarely done.

Detailed explanation-4: -Virus isolation in cocultured cells. Using this method, different types of cells are grown as a monolayer in a vial and various monoclonal antibodies are applied on these cells for diagnosis of different viruses. Using this technique, different viruses can be detected in the same vial.

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