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Solution


Q.

Artificial selection to obtain cows yielding higher milk output represents            [2017]
1 directional as it pushes the mean of the character in one direction  
2 disruptive as it splits the population into two, one yielding higher output and the other lower output  
3 stabilising followed by disruptive as it stabilises the population to produce higher yielding cows  
4 stabilising selection as it stabilises this character in the population  

Ans.

(1)