This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Which of the following is best method for paternity testing 
Select and explain. 
A. Karyotyping, B. Microsatellite analysis, C. Northern blot analysis, D. All of the above
B: Microsatellite analysis
Answer: B: Microsatellite analysis 
Explanation: Paternity testing is most often.
Performed by utilising PCR probes that amplity microsatellite repeats.
The pattern of repeats is compared between mother, child, father.