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Question: Answered & Verified by Expert
In the XO type of sex determination, what determines the sex of the offspring?
BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A The number of autosomes
  • B The presence or absence of the Y:chromosome
  • C The presence or absence of the X:chromosome in the sperm
  • D The presence or absence of the X:chromosome in the egg
Solution:
1307 Upvotes Verified Answer
The correct answer is: The presence or absence of the X:chromosome in the egg
In the XO type of sex determination, all eggs bear an additional X:chromosome besides the other chromosomes (autosomes), and the sex of the offspring is determined by the presence or absence of the X:chromosome in the sperm that fertilizes the egg.

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