Explain polygenic ingeritance with the help of a suitable example.

1.	Explain polygenic ingeritance with the help of a suitable example.
Answer» The process of evolution that a single point and radiates in different directions are called adaptive radiation. Australian marsupial has evolved from a single ancestor and placental mammals exhibit. similarities with their corresponding marsupial, such as placental wolves and Tasmanian wolves.

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(i) Arrange the following compounds in an increasing order of basic strength : `C_(6)H_(5)NH_(2), C_(6)H_(5)N(CN_(3))_(2), (C_(2)H_(5))_(2)NH and CH_(3)NH_(2)` (ii) Arrange the following compounds in a decreasing order of `pK_(b)` values: `C_(2)H_(5)NH_(2), C_(6)H_(5)NHCH_(3), (C_(2)H_(5))_(2) NH and C_(6)H_(5)NH_(2)`
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Explain polygenic ingeritance with the help of a suitable example.

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