Question

the figure above shows a pedigree chart for a family, some of whose members exhibit the dominant trait, w. affected individuals are indicated by a dark square or circle.
what is the genotype of individual ii - 5?
ww or ww
ww
ww
ww

Explanation:

Step1: Analyze the trait inheritance

The trait \( W \) is dominant. Affected individuals have at least one \( W \) allele. Unaffected individuals have \( ww \) genotype.

Step2: Check individual II - 5's phenotype

Individual II - 5 is not affected (white circle). So, it must have two recessive alleles.

Answer:

ww