After gel electrophoresis, the DNA fragment can be visualized by:
Torch light
Fluorescent light
UV light
Staining them with Ethidium bromide followed by exposure to UV- light.
DNA fragments are incapable of self replication in which medium ?
E. Coli/ any other host cell.
Within the slab.
Within the medium.
Within the gel.
Monoclonal antibodies are used in :
Pregnancy testing.
Diagnosis of disease.
Preventing rejection of transplants.
All of the above.
Who discovered jumping gene?
Stanley
Paul Berg
Lederberg and Team
Barbara McClintock
Through PCR, DNA can be amplified to how many times?
10 times
100 times
1000 times
Millions of times
The first recombinant DNA was made by:
Pearl Berg
Paul Bremer
Henrik Patrinaik
Herbert Boyer & Stanley Colene
ECOR1 produces the cut ends with :
| blunt | flash ends.
Staggered | Cohesive.
Identical cut.
None of these.
Which scientist transferred SV-40 virus to E.coli?
Jacob and Monad
Herbicides acts usually by :
Blocking photosystem-I.
Blocking photosystem - II.
Blocking xylem vessels.
Blocking phloem channels.
An important component of genetic engineering technology is which class of enzymes ?
DNA polymerases.
RNA polymerases.
Restriction endo nuclease.
Ligases.
