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NEETZoologyPrinciples of Inheritance and Variation

What factor besides multiple genes does polygenic inheritance take into account?

Options

  1. AGenetic mutation
  2. BEnvironmental influence
  3. CHormonal changes
  4. DNutritional intake

Correct answer

B. Environmental influence

Step-by-step solution

Mendel’s studies mainly described those traits that have distinct alternate forms such as flower color which are either purple or white. But if you look around you will find that there are many traits which are not so distinct in their occurrence and are spread across a gradient. For example, in humans we don’t just have tall or short people as two distinct alternatives but a whole range of possible heights. Such traits are generally controlled by three or more genes and are thus called polygenic traits. Besides th

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