Question

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) Directional Selection
(2) Stabilizing Selection
(3) Disruptive Selection
(4) Cyclical Selection

Answer 1

Answer:

2) Stabilizing selection

Explanation:

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 .

Answer 2

Stabilizing Selection type of selection process is taking place in the species.

Step by step explanation:

Stabilizing Selection:

It is a form of natural selection where the mean population stabilizes on a non-extreme value of a particular trait.

The data given shows stabilizing selection as most newborns with an average weight of 3 to 3.3 kg survive and babies with less and more weight have low survival rate.

Hence, correct option - 2.