Genetic diversity is essential for species survival from "summary" of El gen / The Gene: An Intimate History by Siddhartha Mukherjee
Genetic diversity, the genetic variation within a population, is not just a matter of scientific curiosity. It is, in fact, essential for the survival of a species. This diversity acts as a buffer against the challenges that a species may face in its environment. Without it, a species becomes vulnerable to threats such as diseases, changes in climate, and competition from other species. When a population lacks genetic diversity, it is more likely to be wiped out by a single catastrophic event. This is because individuals within the population are more likely to have the same vulnerabilities, making it easier for a single threat to wipe out the entire population. On the other hand, a genetically diverse population is more likely to have individuals with varying traits that may help them survive in t...
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