Question No:1

Foreign DNA is also called

[A] Vehicle DNA
[B] Passenger DNA
[C] r-DNA
[D] Vector DNA



Question No:2

Plasmids are

[A] ss-DNA
[B] ds-DNA (linear)
[C] ds-DNA (circular)
[D] denarured-DNA



Question No:3

pBR322 is most extensively studied

[A] Plasmid DNA of E. coli
[B] Foreign gene
[C] r-DNA
[D] Clone



Question No:4

Restriction enzymes recognize specific

[A] Palindromic region
[B] Exons
[C] Introns
[D] None of these



Question No:5

First restriction enzyme was isolated from

[A] E. coli
[B] Haemophilus influenza
[C] Pseudomonas
[D] Xanthomonas



Question No:6

Restriction endonuclease is a

[A] Enzyme for transcription
[B] Molecular blade
[C] Enzyme for replication
[D] Enzyme for transduction



Question No:7

Restriction enzymes of E. coli are

[A] Hind.ni
[B] Bam H.I
[C] Eco R.I, EcoR.II
[D] All of these



Question No:8

Plasmids are

[A] Extra nuclear genes of bacteria
[B] Endosymbiont of bacterial cells
[C] Best vector DNA
[D] All of the above



Question No:9

Best cloning organism for genetic engineering and biotechnology is

[A] Agrobacterium
[B] Pseudomonas
[C] E. coli
[D] Lambda phage



Question No:10

Bacteriophages are used in biotechnology as

[A] Vector or vehicle DNA
[B] Cloning organism
[C] Restriction enzyme synthesizers
[D] None of the above



Question No:11

The ability to form tumours is found in plasmids of

[A] E. coli
[B] Pseudomonas
[C] Agrobacterium
[D] Pneumococcus



Question No:12

Engineered bacterium carries

[A] Plasmids
[B] r-DNA
[C] c-DNA
[D] ss-DNA



Question No:13

Engineered bacteria are reproduced by inserting

[A] Plasmids DNA
[B] Desired DNA (gene/s) loaded on vector DNA
[C] Vehicle DNA
[D] Phage DNA



Question No:14

Oncogenic character is seen in

[A] E. coli
[B] pBR322
[C] T₁ plasmids
[D] R ₁plasmids



Question No:15

Transgenic plants are produced by inserting desired genes in

[A] pBR-322
[B] T₁ plasmids
[C] Lambda phage
[D] None of these