The banana is the most commonly eaten fruit in the world, and 99% of bananas sold internationally today are a single cul

[answerhappygod]

The banana is the most commonly eaten fruit in the world, and99% of bananas sold internationally today are a single cultivar,known as the Cavendish banana. Cavendish bananas areseedless, and thus sterile, and all the Cavendish bananas aroundthe world are likely the result of cuttings from a single treeraised in a greenhouse in England in 1834 by William Cavendish, the6th Duke of Devonshire.
The Cavendish banana lacks resistance to the TR4 fungus, andsince the 1990s the fungus has been spreading around the world,wiping out entire banana crops.
Why is a lack of genetic diversity dangerous to the survival ofa population, even if the population is well adapted to itsenvironment?