Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?
The smaller number of tigers means lesser variations which in turn means lesser ability to adapt to the changing environment. For example, if a deadly disease infects the tigers, all the tigers may die from it as there would be less variation in the genotype to survive the disease. Decrease in population of tigers also indicates that tiger variants are not adapted to the existing environment and may become extinct soon.
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