Final answer:
Individual 1 has an 'aa' genotype, individual 2 has an 'AA' genotype, and individual 3 also has an 'AA' genotype.
Step-by-step explanation:
The genotypes of the individuals labeled 1, 2, and 3 can be deduced using the information provided. According to the given pedigree, individual 1 must have an 'aa' genotype, individual 2 must have an 'AA' genotype, and individual 3 must also have an 'AA' genotype.