1. Robin's eye color is green because both of her parents are homozygous recessive.
2. Jose III's genotype is heterozygous, because he has brown eyes and his daughter has green eyes. The only possible cross between a brown eyed individual and a green eyed individual that produces green eyed offspring is Bb x bb. BB x bb produces all heterozygous offspring, which are all brown eyed.
3. Jose III, Jose Jr., Amanda, one or both of Jose Jr.'s parents and possibly Lashley are carriers.
Robin, Alma, Brooke, and Mari would have sickle cell anaemia.
Jose and Jenny's genotype is unclear. They could either be BB x Bb, or Bb x Bb. Lashley's genotype is also unclear. She could either be BB or Bb.
