Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

There are more hemophilic than
hemophilic women because
need to have two chromosomes
affected to develop disease while in
men disease manifests when the
X chromosome is affected.