A trait that is controlled by a group of nonallelic genes. Supplement. Polygenic traits are controlled by two or more than two genes (usually by many different genes) at different loci on different chromosomes. These genes are described as polygenes.xamples of human polygenic inheritance are height, skin colour and weight. Polygenes allow a wide range of physical traits. For instance, height is regulated by several genes so that there will be a wide range of heights in a population. Word origin: poly = many + genic = of genes.
They are found in eastern Russia. The average weight of male Siberian tiger is 300 to 350kg. Its body length is around 200-230cm while its tail length varies from 90-110cm. The average weight of female Siberian tiger is 130-160kg which is always lesser than males. Her body length is 160 to 180 cm and her tail is 80 to 110 cm long.
Weight: 660 lbs (300 kg). Protection status: Endangered. Size relative to a 6-ft (2-m) man: Siberian (or Amur) tigers are the world's largest cats. They live primarily in eastern Russia's birch forests, though some exist in China and North Korea.There are an estimated 400 to 500 Siberian tigers living in the wild, and recent studies suggest that these numbers are stable.ll five remaining tiger subspecies are endangered, and many protection programs are in place. Poaching is a reducedâbut still very significantâthreat to Siberian tigers. Tigers live alone and aggressively scent-mark large territories to keep their rivals away.