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Biology · PYQ NEET UG 2019(1)

हिन्दी

In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

  1. Disruptive selection
  2. Cyclical selection
  3. Directional selection
  4. Stabilizing selection

Correct answer · Option 4

Stabilizing selection

Explanation

Stabilizing selection favors intermediate phenotypes while eliminating extreme values, thus reducing variance and maintaining the average trait.
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