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Question: Answered & Verified by Expert
Sex determination in most of the insects is:
BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A XO type, female heterogamety
  • B XO type, male heterogamety
  • C ZW type, female heterogamety
  • D ZW type, male heterogamety
Solution:
2174 Upvotes Verified Answer
The correct answer is: XO type, male heterogamety
Heterogamety is the feature of either of the sex in a species. It is of two types : 

A. Male heterogamety
- Male produces two types of gametes.
- Male heterogamety is of two types : 

1. XO type:
- It is found in most of the insects (e.g. Grasshopper).

2. XY type:  
- It is found in humans.

B. Female heterogamety
- Female produces two types of gametes.
- Female possess one chromosome less than that of male.
- It is observed in birds.

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