Blood samples for virus isolation should be stored at ____ degrees centigrade.

• A) 0
• B) -8
• C) 4
• D) -4

Transcription process is catalyzed by ______ .

• A) RNA dependent DNA polymerase
• B) DNA dependent DNA polymerase
• C) DNA dependent RNA polymerase
• D) RNA dependent RNA polymerase

Which one of the following enzymes is a phosphotransferase?

• A) Thymidine kinase
• B) Arginase
• C) Helicase
• D) DNA polymerase

Which enzyme play role in central dogma of cell?

• A) All of the given enzymes
• B) Reverse transcriptase
• C) RNA dependent RNA polymerase
• D) RNA polymerase

For a long period of time, DNA should be stored at ____ degrees centigrade.

• A) -4
• B) -20
• C) -80
• D) -40

The conversion of arginine to ornithine is catalyzed by____ enzyme.

• A) Helicase
• B) Thymidine kinase
• C) Carboxylase
• D) Arginase

Polymerization of viral RNA occur from ____ .

• A) Cellular RNA
• B) Cellular proteins
• C) Viral DNA
• D) Cellular DNA

Which one of the following enzymes is responsible for the proof reading of genome?

• A) DNA polymerase
• B) Primase
• C) Thymidine kinase
• D) RNA polymerase

which one of the following is not true regarding interferons?

• A) Do not bind to viral RNA
• B) Produced by cells
• C) Inhibit translation of viral genome
• D) Virus specific

Large sized viruses are retained by _____.

• A) W grade berke filter
• B) N grade berke filter
• C) Mandler Filter
• D) V grade berke filter

Poliovirus inhibits cellular RNA synthesis at____ degrees centigrade.

• A) 37
• B) 32
• C) 40
• D) 28

Which one of the following grades of Selas Filter can filter bacteria?

• A) No. 05
• B) No. 03
• C) No. 01
• D) No. 10

How many grades of Seitz filters are there?

• A) 7
• B) 2
• C) 3
• D) 13

The Mandler Filter IS COMPOSED OF ______.

• A) Nitro-cellulose
• B) Asbestos
• C) Diatomaceous Earth
• D) Porcelain

Pasteur chamberland Filter has _____ grades.

• A) 13
• B) 15
• C) 3
• D) 2

Poxvirus replicates in ______ .

• A) Nucleus
• B) Cytoplasm
• C) Lysosome
• D) Ribosome

Which of the following enzymes contains manganese?

• A) Thymidine kinase
• B) Arginase
• C) DNA polymerase
• D) Helicase

Seitz Filter is made up of

• A) Nitro-cellulose
• B) Porcelain
• C) Diatomaceous Earth
• D) Asbestos

Which one of the following types of ELISA is most powerful assay?

• A) Direct ELISA
• B) Sandwich ELISA
• C) Competitive ELISA
• D) Indirect ELISA

At what temperature does annealing of DNA and primer take place?

• A) 96°C
• B) 74°C
• C) 54°C
• D) 42°C