For the pedigree on the right individuals affected with the

For the pedigree on the right, individuals affected with the genetic condition are indicated by the shaded symbols. A) Based on this pedigree, what type of inheritance does this genetic condition have (dominant, recessive, sex-linked)? Explain. B) What is the genotype of the parents? C) What makes an allele dominant or recessive?

Solution

It represents recessive genetic inheritence in which both the parents are carriers and belong to autosomal recessive groups. If an allele, which is made of gene needs only one gene to show up is termed as dormant and if it requires two genes to show up is termed as recessive.