Discussion:
Determining probability of inheriting disease gene
Part I:
Imagine you have a friend who is getting married and plans on starting a family right away. She asks your advice about preconception genetic screening because she is concerned about the chance that her future children could have cystic fibrosis. Her fiancé has a sister that has cystic fibrosis, and she has a cousin who has the disease, although none of her siblings have it.
Launch the Multimedia Player (Go to 'Course Materials' and launch 'Unit 3 Multimedia Course Material') for Unit 3 and go to the 2nd activity called 'Unit 3 DB'.
Use the interactive pedigree in the activity to determine the genotypes of your friend's family members. (One uncle and a cousin are marked as having the disease).
Determine the probability of your friend being a carrier of the disease.
What is the likelihood that if she married this person, her children would inherit cystic fibrosis? Would you suggest she (or any of her family members) undergo genetic testing before starting a family? Why or why not?
Part II:
Briefly describe how genetic knowledge assists us with testing for one specific genetic disorder other than cystic fibrosis. Describe the disorder, genetic tests currently in use, and any potential for gene therapy or possible treatments. Use an authoritative reference to support your points.
Attachment:- Presentation.rar