List of top Questions asked in PSEB XII

What is convergent evolution. Give an example
In national park protection is given to
Copper T is used as birth control device by women
Sickle cell anaemia is an example of point mutation.
Vaccination is a type of innate immunity
In gel electrophoresis DNA fragments separate according to their charge
Zygote divides to form ……….which is implanted in uterine wall
Substances which cause allergy are called ……..
Vertebrate forelimbs are example of
The genes causing cancer are
If BOD of water sample is very high, the sample is
Plasmids are used as cloning vectors because they
Golden rice is enriched with
Mycohhroezais example of
At each tropic level in which form energy is lost
The nuclei present in central cell of embryo sac is called
Delivery of developed fetus is scientifically called
Disadvantages of amniocentesis is
A cross between F1 hybrid and any one of parent is