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NEETZoologyPrinciples of Inheritance and Variation

Which of the following organisms exhibits female heterogamety?

Options

  1. ADrosophila
  2. BFowl
  3. CGrasshopper
  4. DHuman

Correct answer

B. Fowl

Step-by-step solution

Female heterogamety is a type of sex determination where the female produces two different types of gametes. In birds (such as fowl), the sex determination is of the ZZ-ZW type, where females are heterogametic (ZW) and males are homogametic (ZZ). Drosophila and humans exhibit the XX-XY type of sex determination, which is an example of male heterogamety. Grasshoppers exhibit the XX-XO type of sex determination, which is also an example of male heterogamety. Answer: Fowl

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