Question

Differentiate between the following:

Repetitive DNA and Satellite DNA

Answer 1

Sr. No.	Repetitive DNA	Satellite DNA
1.	DNA sections where base sequences are repeated many times.	Repetitive DNA sequences that are repeated back-to-back (tandemly).
2.	Repeating units can range from a few to thousands of base pairs.	Consists of highly repetitive, typically shorter sequence units.
3.	They form distinct major peaks in density gradient analysis.	They appear as small peaks (satellite peaks) in density gradient analysis.
4.	These sequences are isolated from the bulk genomic DNA.	They are separated specifically from bulk genomic DNA during centrifugation.