Q

# Please help! In a species,the weight of newborn ranges from 2 to 5 kg.97%of the newborn with an average reight between 3 to 3.3 kgsurvive whereas 99% of the infants born with weight from 2 to 2.5 kgor 4.5 to 5 kgdie.Which type of selection process is

In a species,the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average reight between 3 to 3.3 kg survive whereas 99% 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 ?

• Option 1)

Directional Selection

• Option 2)

Stabilizing Selection

• Option 3)

Disruptive Solution

• Option 4)

Cyclical Solution

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Stabilizing or balancing selection -

A type of natural detection which leads to the elimination of organism having over specialised characters and maintains homogeneous population which is generally constant.

- wherein

It favours the average or normal phenotypes. Results in very low rate of evolution.

Stabilizing selection favours the medium types $(3 \; to\; 3.3\; kg)$ while the extreme phenotypes $(2 \; to\; 2.5\; kg\; and\; 4.5\; to\; 5 \; kg)$ are eliminated.

Option 1)

Directional Selection

Option 2)

Stabilizing Selection

Option 3)

Disruptive Solution

Option 4)

Cyclical Solution

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