NEET2017ZoologyEvolutionActual
Which one of the following graphs correctly describes disruptive selection? When studying fitness level associated with body size?
Correct answer
3
Step-by-step solution
Disruptive selection occurs when an environmental change may produce selection pressure that favours two extreme characteristics. Selection acts on the phenotype, physical, biochemical and behavioural traits of an organism. It indirectly adapts a population to its environment by selecting and maintaining favourable genotypes in their give pool.