Vaccines prepared by genetic engineering are safe to man because they are
least active form of virus
active form of virus
coat protein formed as antibody
All of the above
A.
least active form of virus
Vaccination is a technique to develop immunity without infection, ie, weakened or dead pathogens or part of pathogens infected into a person who required to made immune. This is the reason that vaccines prepared by genetic engineering are safe to man because they are least active form of virus.
Insect resistance transgenic cotton has been produced by inserting a piece of DNA from:
an insect
a bacterium
a wild relative of cotton
a virus
Which statement is incorrect ?
Plant viruses contain RNA
Animal viruses contain DNA
T4 contains double strand DNA
TMV contains double stranded RNA
The term genetic engineering is used for :
blotting technique
RNA reaction technique
protein synthesis technique
recombinant technique
A student wants to study metaphasic behaviour of chromosomes in a living cell. The technique most suitable is :
phase contrast microscope
x-ray microscope
cell fractionation
scanning electron microscope