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NEET 2024 Answer Key with Solution PDF for Code S1, S2, S3, S4, S5, S6

XX/O Type of Sex Determination - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

Quick Facts

  • Sex Determination: XX Female & XO Male Type is considered one of the most asked concept.

  • 6 Questions around this concept.

Solve by difficulty

Which one of the following conditions correctly describes the manner of determining the sex in the given example?

Concepts Covered - 1

Sex Determination: XX Female & XO Male Type

 

  • Mc Clung and Wilson (1903) described this type of sex mechanism in insects especially in grasshopper.
  • In male there is no mate for X chromosome, hence the name XO is given, there is no Y chromosome. 
  • The females have two sex chromosomes, XX.
  • Females are homogametic while males are heterogametic.
  • Males produce sperm of two types, 50% with X chromosome and 50% without X.

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Sex Determination: XX Female & XO Male Type

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Sex Determination: XX Female & XO Male Type

Biology Textbook for Class XII

Page No. : 85

Line : 22

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