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.
Large male Siberian tigers can reach a total length of more than 3.5 m (11.5 ft) over curves and 3.3 m (10.8 ft) between pegs, and can weigh up to 306 kg (675 lb). This is considerably larger than the weight of 75 to 140 kg (165 to 309 lb) reached by the smallest living subspecies, the Sumatran tiger.nlike many felids, tigers are strong swimmers and often deliberately bathe in ponds, lakes and rivers as a means of keeping cool in the heat of the day. Among the big cats, only the jaguar shares a similar fondness for water. They may cross rivers up to 7 km (4.3 mi) across and can swim up to 29 km (18 mi) in a day.