Bottlenecks and Founder Effects. Genetic drift can cause big losses of genetic variation for small populations. Population bottlenecks occur when a populations size is reduced for at least one generation.ottlenecks and Founder Effects. Genetic drift can cause big losses of genetic variation for small populations. Population bottlenecks occur when a populations size is reduced for at least one generation.
Chernobyl, or Chornobyl, is the name of a city situated in northern Ukraine near the border with Belarus. Chernobyl was largely abandoned following the disaster at the Chernobyl Nuclear Power Plant located 14.5 kilometres (9 miles) away.
CHERNOBYL CHILDREN'S PROJECT (UK). 70% of the fallout from the Chernobyl accident landed on Belarus, contaminating 23% of the country to a level of over 1 curie per sq/km.This was an area occupied by 2 million people in 3,668 towns and villages.0% of the fallout from the Chernobyl accident landed on Belarus, contaminating 23% of the country to a level of over 1 curie per sq/km.