Sex Determination Systems in Animals
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Questions and Answers

In the XX-XY system found in most mammals and humans, which sex is the homogametic sex?

  • Female (correct)
  • Zygote
  • Intersex
  • Male

What determines the sex in male grasshoppers according to the given information?

  • XO genotype (correct)
  • SRY gene
  • XX genotype
  • ZW genotype

Which of the following organisms follows the haploid-diploid system for sex determination?

  • Hymenopterans (bees) (correct)
  • Humans
  • Birds
  • Snakes

What is the role of the SRY gene in the XX-XY system of sex determination?

<p>Determines male sex in mammals (B)</p> Signup and view all the answers

Which of the following pairs of organisms have females as the heterogametic sex?

<p>Birds and snakes (D)</p> Signup and view all the answers

Which sex-determining system involves males being haploid and females being diploid in certain insects?

<p>Haploid-Diploid System (C)</p> Signup and view all the answers

Which sex-determining system involves males having the presence of the SRY gene on the Y chromosome?

<p>XX-XY System (B)</p> Signup and view all the answers

In which sex-determining system are females the homogametic sex?

<p>ZZ-ZW System (B)</p> Signup and view all the answers

Which sex-determining system is characterized by males being XO and females being XX?

<p>XX-XO System (A)</p> Signup and view all the answers

What determines the sex in female birds and snakes in their sex-determining system?

<p>ZW or ZZ chromosomes (C)</p> Signup and view all the answers

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