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
The size of Microsatellite repeat sequence is: 
Select and explain. 
A. <1 kb, B. 2-6 bp, C. 1-3 kb, D. >3 kb
B: 2-6 bp
Answer: B: 2-6 bp 
Explanation: Ans: b. 2-6 bpsequences of 2-5 bp repeated up to 50 times. May occur at 50000-100000 locations in the genome"-Harper 30th/377-78, 28th/404Sho (2-6 bp), inherited, tandem repeat units of DNA occur about 50,000-100,000 times in the human genome.Because they occur more frequently--and in the view of the routine application of sensitive PCR methods--they are replacing RFLPs as the marker loci for various genome searches.