This exercise is approximately 5 pages.
Some forms of
deafness are genetically based. This means that they can be passed
down (inherited) depending on the genetic circumstances.
Examine the pedigree
below to figure out which individuals show the deafness phenotype:
Below you'll find
genetic jigsaw puzzles for 12 individuals from the family above.
The number of each puzzle corresponds to the number of the individual
in the pedigree. See enlarged versions of the puzzles.
Here's the challenge!
Find the piece of the genetic puzzle that is responsible for deafness.
Exactly what are you looking for?
To make it easier
on yourself, print out the puzzles and compare them.
Need a hint?
How would a scientist think
about this problem?
Which puzzle piece is responsible for deafness? Choose the number
of the puzzle piece that you think contains the gene.
How do you know your puzzle piece is the right one?
Map a gene activity
- Easier version!