'Heterosis' is related to :
cloning
selection
hybridization
introduction
C.
hybridization
Heterosis was used by shull in 1814. It is the superiority of on F1 hybrid over both its parents in terms of yield or some other characters.
Which statement is incorrect ?
Plant viruses contain RNA
Animal viruses contain DNA
T4 contains double strand DNA
TMV contains double stranded RNA
Pollination occuring from one flower to another of same plant is :
autogamy
allogamy
geitenogamy
none of these