“If Julian is truly Ana’s son,” Maya said slowly, “and Ana was AB at the time of his birth, Julian cannot be type O.”
“But that’s not the only clue,” Dr. Reeves added. “Carlos’s blood type was confirmed type A—but Ana’s medical record from decades ago shows she was typed as type AB.” lab activity blood type pedigree mystery
Here’s a short draft for a lab activity story titled Title: The Heirloom Type “If Julian is truly Ana’s son,” Maya said
“Standard family,” Leo shrugged. “What’s the mystery?” “If Julian is truly Ana’s son