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NEETZoologyPrinciples of Inheritance and Variation

What are traits called that are controlled by three or more genes?

Options

  1. APleiotropic traits
  2. BPolygenic traits
  3. CMonogenic traits
  4. DEnvironmental traits

Correct answer

B. Polygenic traits

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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