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NEET2022ZoologyPrinciples of Inheritance and VariationActual

XO type of sex determination can be found in:

Options

  1. ABirds
  2. BGrasshoppers
  3. CMonkeys
  4. DDrosophila

Correct answer

B. Grasshoppers

Step-by-step solution

An example of an XO type of sex determination is Grasshopper in which the males have only one X-chromosome besides the autosomes, whereas females have a pair of X-chromosomes. XX-XY sex-determination system is seen in Man and Drosophila whereas the ZZ-ZW sex-determination system is present in the birds.

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