The most likely reason for the development of resistance against pesticides in insect damaging a crop is
Random mutations
Genetic recombination
Directed mutations
Acquired heritable changes
A hereditary disease which is never passed on from father to son is
A normal woman whose father was albino marries a man who is albino. What proportion of normal and albino can be expected among their offsprings
Euphenics is
If mother and father both are without pigments $(albinism)$, then
Which one of the following is a dominant trait