Question

Male heterogametic, XX-XO type of sex determination is found in ____________.

• A. Butterflies
• B. Moth
• C. Grasshoppers
• D. Drosophila

Answer 1

The correct option is C Grasshoppers

• In moths and butterflies: ZW system, the ovum determines the sex of the offspring. Males are the homogametic sex (ZZ), while females are the heterogametic sex (ZW).
• Drosophila has XX-XY sex determination system.
• Grasshoppers have XX-XO sex determination system. Males only have one X chromosome (X0), while females have two (XX).

So, the correct answer is 'Grasshoppers'.