79K views · 1.2K reactions | A crucial piece of evidence from Leah's apartment, her slip, yields a significant breakthrough. Lab tests confirm the presence of semen stains, leading to blood type determination using the ABO system. This discovery brings them closer to identifying the assailant. Have you heard of the ABO system? #forensics #bloodtypes #evidence #investigation #crime | Real Crime | Facebook

🩸Rh Factor in Pregnancy → Blood type incompatibility is a concern in pregnancy, especially for FETAL health! Here’s why: -When a father has a positive blood type (has Rh factor) and the mother has a negative blood type (lacks the Rh factor), the fetus develops EITHER a positive or a negative blood type -Though it’s rare, accidental mixing of fetal and maternal blood can cause major complications! -The mother will be exposed to the Rh factor, a protein she’s not used to having in her bloodstream