AP®︎ Biology: Topic 7.11 Flashcards

Genetic uniformity increases vulnerability to disease, environmental change, and population decline.

An allele can be advantageous in one environment but harmful in another.

A sharp population reduction that greatly decreases allele diversity in survivors.

Reduced survival or reproduction caused by mating among closely related individuals.

An endangered bird whose severe bottleneck left very low genetic variation.

An endangered mammal descended from few survivors, leaving limited genetic diversity.

A fragmented population that suffered inbreeding depression and reduced reproductive success.

A plant disease that devastated genetically uniform potato crops during the Irish famine.

A fungal disease whose impact is reduced by maintaining genetically diverse corn varieties.

Resistant bacteria survive antibiotic treatment and reproduce, shifting the population's traits.

Wildlife corridors, managed breeding, cryopreservation, and reintroduction help preserve variation.

Heritable variation increases the chance some individuals survive and reproduce after environmental change.