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hardMCQNEET (UG) 20172026Biology
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Artificial selection to obtain cows yielding higher milk output represents:

  1. A
    Directional as it pushes the mean of the character in one direction
  2. B
    Disruptive as it splits the population into two, one yielding higher output and the other lower output
  3. C
    Stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows
  4. D
    Stabilizing selection as it stabilizes this character in the population

Solution & Step-by-step Explanation

When selection favors one extreme phenotype over the mean and the other extreme, it is Directional Selection. Breeding for "higher milk output" is a clear example of moving the population mean towards one extreme.

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Artificial selection to obtain cows yielding higher milk output represents:
A
Directional as it pushes the mean of the character in one direction
B
Disruptive as it splits the population into two, one yielding higher output and the other lower output
C
Stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows
D
Stabilizing selection as it stabilizes this character in the population

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