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Unit Plan
Cold Spring Harbor Laboratory

Dna From the Beginning: Sex Linked Hemophilia in the Royal Romanov Family

For Students 9th - 10th
An animated pedigree clearly explains the way hemophilia was inherited in the Romanov family. Interpreting pedigrees and sex-linked crosses should be much easier to understand after going through this tutorial.
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Unit Plan
Cold Spring Harbor Laboratory

Dna From the Beginning: Chromosomes Carry Genes

For Students 9th - 10th
Thomas Hunt Morgan will explain the research he did to determine that some traits are linked to the sex of an individual.
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Activity
University of Arizona

University of Arizona: Sex Linked Inheritance

For Students 9th - 10th
This site from the University of Arizona provides great information on a sex-linked inheritance problem set. This is a very good site to practice what you know about sex-linked problems. Each link is a problem.
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Activity
University of Arizona

University of Arizona: Sex Linked Inheritance Set 2

For Students 9th - 10th
This site, provided by The University of Arizona, gives a good set of genetics problems that involve sex-linked genes. Great to review what you know! Links are provided to access the various subjects covered in this problem set.
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Handout
Estrella Mountain Community College

Estrella Mountain Community College: Gene Interactions

For Students 9th - 10th
This resource provides extensive information about genetic interactions.
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Handout
Other

North Dakota State Univ.: Detecting and Measuring Linkage

For Students 9th - 10th
A good site to establish what is meant by gene linkage and sex-linkage.
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Handout
National Health Museum

Access Excellence: Sex Linked Inheritance: Drosophila

For Students 9th - 10th
Here are graphics illustrating an experiment with drosophila fruitflies. Sex-linked inheritance is demonstrated here using eye color alleles on X chromosomes. Site by Access Excellence.