Silence. Then Priya, the group’s quietest member, spoke up. “That changes everything. Two type A parents can have a type O child. But an A and an AB cannot produce a type O child. Ever.”
The late afternoon light slanted through the lab windows as Maya pinned the last pedigree chart to the corkboard. “Okay, team,” she announced, uncapping a set of blood typing trays. “This is the Martinez family case.”
Priya’s eyes widened. “If Ana is O negative and Carlos is AO, then possible children: type A or type O. Julian is type O—so he could be Ana’s son.”
“Standard family,” Leo shrugged. “What’s the mystery?”
Silence. Then Priya, the group’s quietest member, spoke up. “That changes everything. Two type A parents can have a type O child. But an A and an AB cannot produce a type O child. Ever.”
The late afternoon light slanted through the lab windows as Maya pinned the last pedigree chart to the corkboard. “Okay, team,” she announced, uncapping a set of blood typing trays. “This is the Martinez family case.”
Priya’s eyes widened. “If Ana is O negative and Carlos is AO, then possible children: type A or type O. Julian is type O—so he could be Ana’s son.”
“Standard family,” Leo shrugged. “What’s the mystery?”
