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10 Questions

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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?

Determines male sex in mammals Signup and view all the answers

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

Birds and snakes Signup and view all the answers

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

Haploid-Diploid System Signup and view all the answers

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

XX-XY System Signup and view all the answers

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

ZZ-ZW System Signup and view all the answers

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

XX-XO System Signup and view all the answers

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

ZW or ZZ chromosomes Signup and view all the answers