Answer:
Variable trait in a population refers to the differences in genetic composition in individuals.
The variable trait is very common and necessary as we all have different parents and the process of meiosis which takes place in sex cells involves the parent passing only one set of chromosome to the offspring and producing four unique daughter cells.
The implication of this is that individuals will definitely have their own unique characteristics also.
This helps to promote diversity within the population and ensure people living in a particular region which involves special features or ability are able to cope as the traits are imbibed in such individual.
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