Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?

Explanation

### Step-by-Step Solution:

1. **Understanding the Concept of Genetic Variation**:
- Genetic variation refers to the differences in DNA among individuals within a species. A higher number of individuals typically leads to greater genetic diversity.

2. **Impact of Small Population Size**:
- When the population size of a species, such as tigers, is small, the genetic variation within that population is also reduced. This means there are fewer genetic traits available for adaptation to environmental changes.

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