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Get Answers to all your Questions
- #Genetics and Evolution
- #Medical
- #National Eligilibility Cum Entrance Test
- #National Eligibility Cum Entrance Test
- #Biology
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
Answers (4)
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 while the extreme phenotypes
are eliminated.
Option 1)
Directional Selection
Option 2)Stabilizing Selection
Option 3)Disruptive Solution
Option 4)Cyclical Solution
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2 )stabilizing selection will be the correct answer as in this case the mid characters are favoured not the extremes
