In a pedigree, the black (or shaded) shapes indicate the individuals that are affected with the trait/defect/disease in question. This diagram assists in the determination of possible genotypes of an individual based on the family's history of phenotypes. This diagram is constructed in the hopes of determining the risk/probability of having a future offspring that would be affected by the trait in question.
Use the pedigree in this picture to explain if it represents a recessive or dominant condition and give the possible phenotypes representing your answer.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Genetic Counseling concept. You can view video lessons to learn Genetic Counseling. Or if you need more Genetic Counseling practice, you can also practice Genetic Counseling practice problems.