Remember that in a pedigree analysis, the genotypes still follow the rules from Mendel's work. As such, the dominant allele of a gene should be represented by a capital letter while the recessive allele is small for the same letter. The recessive hemophilia allele is therefore represented by h in the X chromosome.
The hemophilia disease is caused by an X-linked recessive gene (gene H). The pedigree of a family with history of hemophilia disease is shown below. Which of the following is the genotype of II-1?
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.