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.
There is little height difference between Amur and Bengal tigers; the differences occur in length and weight. History records the largest Amur tiger as weighing in at 1,000 pounds, though this was an extreme case in a captive cat and they normally outgrow their wild cousins. A wild Amur would be lucky to reach 650 to 675 pounds. In length, thesetigerscan reach 13 feet, between the pegs, but this is the exception, not the rule. Lengths of 8-10 feet are more usual. The term 'between the pegs' denotes measurement from tip of the nose to tip of tail. Amur tiger - the coat (or pelage):