This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infant deaths & child abuse, Subject name: Forensic Medicine
In macerated fetus, the organ used for DNA profiling is 
Select and explain. 
A. Lungs, B. Spleen, C. Hea, D. Skeletal muscle
A: Lungs
Answer: A: Lungs 
Explanation: If fetus is macerated, fetal lungs and brain tissues are more suitable for DNA typing Normal fetuses In older fetus, sample consists of fetal blood obtained by hea puncture. In young fetus, analysis of chorionic villi may provide the fetal pattern. Other tissue suitable for DNA analysis is - quadriceps muscle or rib