NEET-XI-Biology
P1 year:2019
- #107In 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 weight
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 SelectiondigAnsr: 2Ans : ( 2 )
Sol. 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.