Cold Spring Harbor Laboratory
Dna From the Beginning: Sex Linked Hemophilia in the Royal Romanov Family
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.
Cold Spring Harbor Laboratory
Dna From the Beginning: Chromosomes Carry Genes
Thomas Hunt Morgan will explain the research he did to determine that some traits are linked to the sex of an individual.