In the Genes or in the Jeans?

16.5 Case Study

Gender: In the Genes or in the Jeans?

Directions: Go to this website: http://www.sciencecases.org/gender/gender.asp

Complete Parts I and IV-B only

1. What are the biological differences between males and females? Brainstorm and come up with as many differences as you can.

|Males |Females |

|one x chromosome and one y chromosome |two x chromosomes |

|testes |ovaries |

|testosterone |estrogen |

|penis |vagina |

2. When faced with a large number of things, scientists often find it useful to group them into a smaller number of categories. After you have completed your list, divide your characteristics into categories.

|Category |Males |Females |

|Genes |one x chromosome and one y |two x chromosomes |

|Gonads |testes |ovaries |

|Sex Hormone |testosterone |estrogen |

|External Genital |penis |vagina |

Keep clicking at the bottom of the website until you come to Part IV,...