14. What are the main
conventional symbols and
signs used in genetic family
trees?

Gap-fill exercise

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!
In genetic family trees male sex is
usually by a square and
female by a circle. are
indicated by horizontal that
connect squares to and their
direct offspring listed below and
connected that line. The presence
the studied phenotypical form
indicated by a complete
(shading) of the circle the square
correspondent to affected individual.
It is to enumerate the individuals
left to right and top to
bottom for reference.