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.
The Siberian tiger is the largest subspecies. Males weigh 180 to 306 kg (397-675 lb.), and females weigh 100-167 kg (221-368 lb.). (1)   b. Bengal tigers are slightly smaller, with males weighing 180 to 270 kg (397-595 lb.) and females weighing 100 to 160 kg (221-353 lb.). tiger's body is built for capturing and killing large prey through stealth and sudden attack. (2)   2. Powerful limbs and a flexible backbone enable tigers to quickly chase and catch prey over short distances. Tigers can cover up to 10 m (33 ft.) in a single leap.