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Flashcards in Questions lab 2 Deck (16)
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1
Q

In case of haemagglutination, what is the red blood cell agglutinated by?

A

By the virus

2
Q

What is the case of haemadsorption?

A

The virus induces proteins on cell, attaching red blood cells

3
Q

If the virus loses its inefectivity after chloroform treatment, then it is..?

A

An enveloped virus

4
Q

If the virus is treated will chloroform and continues to grow in the cell culture it is?

A

Non-enveloped

5
Q

If the virus is colored greenish/yellowish after acridinorange treatment it is?

A

Double stranded

6
Q

If a virus does not cause CPE..?

A

It cannot be investigated in cell cultures

7
Q

The haemagglutination titer is..?

A

The last dilution where haemagglutination is observed

8
Q

Acridine orange turns..

A

reddish/orange with nucleic acids

9
Q

We can observe synctytium in..?

A

Both stained and non stained cells

10
Q

Inclusion bodies are formed by?

A

Both DNA and RNA viruses

11
Q

In immunoperoxidase test..?

A

The peroxide is added, attached to the antibody or to the virus

12
Q

What kind of viruses is stopped with deoxyuridine?

A

DNA viruses only

13
Q

Plaque is..?

A

CPE in the monolayer

14
Q

Lumpy cell nucleus are a result of?

A

Chromatin conglomerulate

15
Q

What is an HA unit?

A

The last hemagglutination titer

16
Q

Does CPE have diagnostic value?

A

Sometimes, but not pathogenic.