NEET 2019 Biology 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 weight from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?
Answer: (2)
Solution
Here individuals with the average (mean) birth weight have the highest survival, while those at both extremes (very low and very high weight) are eliminated. Selection that favours the average phenotype and removes both extremes reduces variation and is called
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