Home Biology Evolution Previous Year Questions In a species, the weight of newborn ranges f…
Biology Evolution Previous Year Questions Single Correct MCQ
Published on: August 14, 2026

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

A
Directional Selection
B
Stabilising Selection
C
Disruptive Selection
D
Cyclical Selection

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The correct answer is:
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The given data shows stabilising selection as most of the newborn having average weight between 3 to 3.3 kg survive and babies with less and more weight have low survival rate.

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