This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of nucleic acids, Subject name: Biochemistry
Microsatellite sequence is 
Select and explain. 
A. Small satellite, B. Extra chromosomal DNA, C. Sho sequence (2-5) repeat DNA, D. Looped-DNA
C: Sho sequence (2-5) repeat DNA
Answer: C: Sho sequence (2-5) repeat DNA 
Explanation: Microsatellite is a tract of repetitive DNA in which ceain DNA motifs(ranging in length from 2-5 base pairs) are repeated, typically 5-50 times. Microsatellites are a powerful tool in population genetics as a whole in pa due to their cost efficiency. They are widely used for DNA profiling Ref-Harpers illustrated biochemistry 30/e 673