[IB Biology Genetics Notes]


Sample Pedigree Problems

2.The pedigree below is studying the incidence of blonde hair in a family. In humans, dark hair (B) is dominant to blonde hair (b). In this case, individuals who are shaded in are homozygous recessive. Individuals who have clear circles and squares have at least one dominant gene.

 

What are the genotypes of persons A through F above?

[Answer]


Slichter