NEET 2017 Biology question

Artificial selection to obtain cows yielding higher milk output represents

(1)Stabilizing selection as it stabilizes this character in the population
(2)Directional as it pushes the mean of the character in one directionCorrect
(3)Disruptive as it splits the population into two one yielding higher output and the other lower output
(4)Stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows

Answer: (2)

Solution

Selecting cows for higher milk yield shifts the mean value of the trait in one direction (towards higher milk yield), which is directional selection. In stabilizing selection the individuals

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Question ID VK-092175