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Plz tell me about satellite DNA,micro satellites, mini satellites and repetitive DNA. How are they all related

Plz tell me about satellite DNA,micro satellites, mini satellites and repetitive DNA. How are they all related

Grade:12

1 Answers

Umakant biswal
5349 Points
7 years ago
dear nihala
Satellite DNA consists of very large arrays of tandemly repeating, non-coding DNA.Satellite DNA is the main component of functional centromeres, and form the main structural constituent of heterochromatin. 
A microsatellite is a tract of repetitive DNA in which certain DNA motifs (ranging in length from 2–5 base pairs) are repeated, typically 5–50 times. Microsatellites occur at thousands of locations in the human genome and they are notable for their high mutation rate and high diversity in the population, 
A minisatellite is a tract of repetitive DNA in which certain DNA motifs (ranging in length from 10–60 base pairs) are typically repeated 5-50 times. Minisatellites occur at more than 1,000 locations in the human genome and they are notable for their high mutation rate and high diversity in the population. 
Repeated sequences (also known as repetitive elements, or repeats) are patterns of nucleic acids (DNA or RNA) that occur in multiple copies throughout the genome. 
REGARDS 
 

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