When two unrelated individuals or lines are crossed, the performance of F1 hybrid is often superior to both its parents. This phenomenon is called- (AIPMT-2011 Pre) A. Metamorphosis B. Heterosis C. Transformation D. Spheing
Option B.Explanation :- Heterosis is the miracle in which mongrels of several types of a species or crosses between species. They show an increase in growth, size, fecundity, function, yield, or other characteristics over their parents.
